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Panasonic TZ90 vs Pentax 645Z

The Panasonic Lumix DC-TZ90 (called Panasonic ZS70 in some regions) and the Pentax 645Z are two digital cameras that were officially introduced, respectively, in April 2017 and April 2014. The TZ90 is a fixed lens compact, while the 645Z is a DSLR. The cameras are based on a 1/2.3-inch (TZ90) and a medium format (645Z) sensor. The Panasonic has a resolution of 20.2 megapixels, whereas the Pentax provides 51.1 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Panasonic TZ90   Pentax 645Z
Panasonic TZ90 Pentax 645Z
Fixed lens compact camera Digital single lens reflex
24-720mm f/3.3-6.4 Pentax 645 mount lenses
20.2 MP, 1/2.3" Sensor 51.1 MP, Medium Format Sensor
4K/30p Video 1080/60i Video
ISO 80-3200 (80-6400) ISO 100-204800
Electronic viewfinder (1166k dots) Optical viewfinder
3.0" LCD, 1040k dots 3.2" LCD, 1037k dots
Tilting touchscreen Tilting screen (not touch-sensitive)
10 shutter flaps per second 3 shutter flaps per second
Not weather sealedWeathersealed body
380 shots per battery charge650 shots per battery charge
112 x 67 x 41 mm, 322 g 156 x 117 x 123 mm, 1550 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DC-TZ90 and the Pentax 645Z? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

Body comparison

The side-by-side display below illustrates the physical size and weight of the Panasonic TZ90 and the Pentax 645Z. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.

The TZ90 can be obtained in two different colors (black, silver), while the 645Z is only available in black.

Size Panasonic TZ90 vs Pentax 645Z
Compare TZ90 versus 645Z top
Comparison TZ90 or 645Z rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645Z is considerably larger (143 percent) than the Panasonic TZ90. It is noteworthy in this context that the 645Z is splash and dust-proof, while the TZ90 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the TZ90 has a lens built in, whereas the 645Z is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the TZ90 gets 380 shots out of its DMW-BLG10 battery, while the 645Z can take 650 images on a single charge of its D-LI90 power pack. The power pack in the TZ90 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Panasonic TZ90» 4.4 in 2.6 in 1.6 in 11.4 oz 380 n Apr 2017 449- i Panasonic TZ90
 
Pentax 645Z« 6.1 in 4.6 in 4.8 in 54.7 oz 650 Y Apr 2014 8,499 i i Pentax 645Z
 
Canon SX740« » 4.3 in 2.5 in 1.6 in 10.5 oz 265 n Jul 2018 399 i i Canon SX740
 
Canon M100« » 4.3 in 2.6 in 1.4 in 10.7 oz 295 n Aug 2017 499 i i Canon M100
 
Canon SX730« » 4.3 in 2.5 in 1.6 in 10.6 oz 250 n Apr 2017 399- i Canon SX730
 
Canon SX720« » 4.3 in 2.5 in 1.4 in 9.5 oz 250 n Feb 2016 379- i Canon SX720
 
Canon 5DS« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i Canon 5DS R
 
Fujifilm XF10« » 4.4 in 2.5 in 1.6 in 9.8 oz 330 n Jul 2018 499 i i Fujifilm XF10
 
Hasselblad X1D« » 5.9 in 3.9 in 2.8 in 25.6 oz .. Y Jun 2016 8,995- i Hasselblad X1D
 
Leica SL« » 5.8 in 4.1 in 1.5 in 29.9 oz 400 Y Oct 2015 7,450 i i Leica SL
 
Panasonic TZ95« » 4.4 in 2.7 in 1.7 in 11.5 oz 380 n Feb 2019 449 i i Panasonic TZ95
 
Panasonic FT7« » 4.6 in 3.0 in 1.5 in 11.3 oz 300 Y May 2018 449 i i Panasonic FT7
 
Panasonic LX100 II« » 4.5 in 2.6 in 2.6 in 13.8 oz 300 n Aug 2018 999 i i Panasonic LX100 II
 
Panasonic FZ82« » 5.1 in 3.7 in 4.7 in 21.7 oz 330 n Jan 2017 399 i i Panasonic FZ82
 
Panasonic LX5« » 4.3 in 2.6 in 1.7 in 9.6 oz 400 n Jul 2010 499- i Panasonic LX5
 
Pentax 645D« » 6.1 in 4.6 in 4.7 in 52.2 oz 800 Y Mar 2010 9,995- i Pentax 645D
Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The TZ90 was launched at a lower price than the 645Z, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.

 

Sensor comparison

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Panasonic TZ90 features a 1/2.3-inch sensor and the Pentax 645Z a medium format sensor. The sensor area in the 645Z is 5032 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

Panasonic TZ90 and Pentax 645Z sensor measures

With 51.1MP, the 645Z offers a higher resolution than the TZ90 (20.2MP), but the 645Z nevertheless has larger individual pixels (pixel pitch of 5.30μm versus 1.18μm for the TZ90) due to its larger sensor. However, the TZ90 is a much more recent model (by 3 years) than the 645Z, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Pentax 645Z implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645Z for good quality output (200 dots per inch) amounts to 41.3 x 31 inch or 104.9 x 78.6 cm, for very good quality (250 dpi) 33 x 24.8 inch or 83.9 x 62.9 cm, and for excellent quality (300 dpi) 27.5 x 20.6 inch or 69.9 x 52.4 cm. The corresponding values for the Panasonic TZ90 are 25.9 x 19.4 inch or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inch or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inch or 43.9 x 32.9 cm for excellent quality prints.

The Panasonic Lumix DC-TZ90 has a native sensitivity range from ISO 80 to ISO 3200, which can be extended to ISO 80-6400. The corresponding ISO settings for the Pentax 645Z are ISO 100 to ISO 204800 (no boost).

TZ90 versus 645Z MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the 645Z offers substantially better image quality than the TZ90 (overall score 65 points higher). The advantage is based on 6.9 bits higher color depth, 4.1 EV in additional dynamic range, and 5.4 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Panasonic TZ90» 1/2.3 20.2 5184 38884K/30p19.110.610636Panasonic TZ90
 
Pentax 645Z« Medium Format 51.1 8256 61921080/60i26.014.74505101Pentax 645Z
 
Canon SX740« » 1/2.3 20.2 5184 38884K/30p----Canon SX740
 
Canon M100« » APS-C 24.0 6000 40001080/60p23.512.9127278Canon M100
 
Canon SX730« » 1/2.3 20.2 5184 38881080/60p----Canon SX730
 
Canon SX720« » 1/2.3 20.2 5184 38881080/60p----Canon SX720
 
Canon 5DS« » Full Frame 50.3 8688 57921080/30p24.712.4238187Canon 5DS
 
Canon 5DS R« » Full Frame 50.3 8688 57921080/30p24.612.4230886Canon 5DS R
 
Fujifilm XF10« » APS-C 24.0 6000 40004K/15p----Fujifilm XF10
 
Hasselblad X1D« » Medium Format 51.3 8272 62001080/25p26.214.84489102Hasselblad X1D
 
Leica SL« » Full Frame 24.0 6000 40004K/30p25.013.4182188Leica SL
 
Panasonic TZ95« » 1/2.3 20.2 5184 38884K/30p----Panasonic TZ95
 
Panasonic FT7« » 1/2.3 20.2 5184 38884K/30p----Panasonic FT7
 
Panasonic LX100 II« » Four Thirds 16.8 4736 35524K/30p----Panasonic LX100 II
 
Panasonic FZ82« » 1/2.3 18.0 4896 36724K/30p----Panasonic FZ82
 
Panasonic LX5« » 1/1.7 10.0 3648 2736720/60p19.610.813241Panasonic LX5
 
Pentax 645D« » Medium Format 39.5 7264 5440-24.612.6126282Pentax 645D

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the TZ90 provides a higher video resolution than the 645Z. It can shoot video footage at 4K/30p, while the Pentax is limited to 1080/60i.

 

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the TZ90 has an electronic viewfinder (1166k dots), while the 645Z has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the TZ90 offers a wider field of view (100%) than the one in the 645Z (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the 645Z has a higher magnification (0.78x vs 0.46x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Panasonic TZ90, the Pentax 645Z, and comparable cameras.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Panasonic TZ90»1166 n 3.0 1040 tilting Y 1/2000s 10.0 Y Y Panasonic TZ90
 
Pentax 645Z«optical Y 3.2 1037 tilting n 1/4000s 3.0 n n Pentax 645Z
 
Canon SX740« »- n 3.0 922 tilting n 1/3200s 10.0 Y Y Canon SX740
 
Canon M100« »- n 3.0 1040 tilting Y 1/4000s 6.1 Y n Canon M100
 
Canon SX730« »- n 3.0 922 tilting n 1/3200s 5.9 Y Y Canon SX730
 
Canon SX720« »- n 3.0 922 fixed n 1/3200s 5.9 Y Y Canon SX720
 
Canon 5DS« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS
 
Canon 5DS R« »optical Y 3.2 1040 fixed n 1/8000s 5.0 n n Canon 5DS R
 
Fujifilm XF10« »- n 3.0 1040 fixed Y 1/4000s 6.0 Y n Fujifilm XF10
 
Hasselblad X1D« »2360 n 3.0 920 fixed Y 1/2000s 2.3 n n Hasselblad X1D
 
Leica SL« »4400 Y 3.0 1040 fixed Y 1/8000s 11.0 n n Leica SL
 
Panasonic TZ95« »2330 n 3.0 1040 tilting Y 1/2000s 10.0 Y Y Panasonic TZ95
 
Panasonic FT7« »1170 n 3.0 1040 fixed n 1/1300s 10.0 Y Y Panasonic FT7
 
Panasonic LX100 II« »2764 n 3.0 1240 fixed Y 1/4000s 11.0 n Y Panasonic LX100 II
 
Panasonic FZ82« »1166 n 3.0 1040 fixed Y 1/2000s 10 Y Y Panasonic FZ82
 
Panasonic LX5« »- n 3.0 460 fixed n 1/4000s 2.5 Y Y Panasonic LX5
 
Pentax 645D« »optical Y 3.0 921 fixed n 1/4000s 1.1 n n Pentax 645D

One difference between the cameras concerns the presence of an on-board flash. The TZ90 has one, while the 645Z does not. While the built-in flash of the TZ90 is not very powerful, it can at times be useful as a fill-in light.

The TZ90 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the 645Z does not have a selfie-screen.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the TZ90 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Pentax 645Z has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the TZ90 and the 645Z write their files to SDXC cards. The 645Z features dual card slots, which can be very useful in case a memory card fails. In contrast, the TZ90 only has one slot. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

 

Connectivity comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Panasonic Lumix DC-TZ90 and Pentax 645Z and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Panasonic TZ90»-stereomono--micro2.0Y--Panasonic TZ90
 
Pentax 645Z«YstereomonoY-mini3.0---Pentax 645Z
 
Canon SX740« »-stereomono--micro2.0YYYCanon SX740
 
Canon M100« »-stereomono--mini2.0YYYCanon M100
 
Canon SX730« »-stereomono--micro2.0YYYCanon SX730
 
Canon SX720« »-stereomono--micro2.0YY-Canon SX720
 
Canon 5DS« »YmonomonoY-mini3.0---Canon 5DS
 
Canon 5DS R« »YmonomonoY-mini3.0---Canon 5DS R
 
Fujifilm XF10« »-stereomonoY-micro2.0Y-YFujifilm XF10
 
Hasselblad X1D« »YstereomonoYYmini3.0Y--Hasselblad X1D
 
Leica SL« »YstereomonoYYfull3.0Y--Leica SL
 
Panasonic TZ95« »-stereomono--micro2.0Y-YPanasonic TZ95
 
Panasonic FT7« »-stereomono--micro2.0Y--Panasonic FT7
 
Panasonic LX100 II« »Ystereomono--micro2.0Y-YPanasonic LX100 II
 
Panasonic FZ82« »Ystereomono--micro2.0Y--Panasonic FZ82
 
Panasonic LX5« »Ymonomono--mini2.0---Panasonic LX5
 
Pentax 645D« »Ystereo----2.0---Pentax 645D

It is notable that the TZ90 offers wifi support, while the 645Z does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Pentax 645Z (unlike the TZ90) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The 645Z is a recent model that features in the current product line-up of Pentax. In contrast, the TZ90 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the TZ90 was succeeded by the Panasonic TZ95. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Panasonic and Pentax websites.


Review summary

So how do things add up? Which of the two cameras – the Panasonic TZ90 or the Pentax 645Z – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Panasonic Lumix DC-TZ90:

  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Ready to shoot: Comes with a built-in lens, while the 645Z requires a separate lens.
  • More compact: Is smaller (112x67mm vs 156x117mm) and thus needs less room in the bag.
  • Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645Z).
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • More affordable: Was introduced at a lower price, despite coming with a built-in lens.
  • More modern: Reflects 3 years of technical progress since the 645Z launch.

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Arguments in favor of the Pentax 645Z:

  • More detail: Has more megapixels (51.1 vs 20.2MP), which boosts linear resolution by 59%.
  • Better image quality: Scores substantially higher (65 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (6.9 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (4.1 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (5.4 stops ISO advantage).
  • Better sound: Can connect to an external microphone for higher quality sound recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.46x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More flexible: Makes it possible to change lenses and thus to use specialty optics.
  • Longer lasting: Gets more shots (650 versus 380) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been around for much longer (launched in April 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the 645Z is the clear winner of the contest (20 : 15 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

TZ90 15:20 645Z

How about other alternatives? Do the specifications of the Panasonic TZ90 and the Pentax 645Z place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the TZ90 and the 645Z in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
 
Panasonic TZ90»+ +-4/5-4/5 Apr 2017 449- i Panasonic TZ90
 
Pentax 645Z«--4.5/55/55/5 Apr 2014 8,499 i i Pentax 645Z
 
Canon SX740« »+-4/5-4/5 Jul 2018 399 i i Canon SX740
 
Canon M100« »+-4/5-3.5/5 Aug 2017 499 i i Canon M100
 
Canon SX730« »+-4/5-4/5 Apr 2017 399- i Canon SX730
 
Canon SX720« »+-4/5-4.5/5 Feb 2016 379- i Canon SX720
 
Canon 5DS« »+83/1004.5/55/54.5/5 Feb 2015 3,699 i i Canon 5DS
 
Canon 5DS R« »+83/1005/55/54.5/5 Feb 2015 3,699 i i Canon 5DS R
 
Fujifilm XF10« »-75/1004/5-4.5/5 Jul 2018 499 i i Fujifilm XF10
 
Hasselblad X1D« »o81/100--4/5 Jun 2016 8,995- i Hasselblad X1D
 
Leica SL« »-84/1004.5/54/54/5 Oct 2015 7,450 i i Leica SL
 
Panasonic TZ95« »--4.5/5-- Feb 2019 449 i i Panasonic TZ95
 
Panasonic FT7« »+-3.5/5-3.5/5 May 2018 449 i i Panasonic FT7
 
Panasonic LX100 II« »+82/1004.5/5-4.5/5 Aug 2018 999 i i Panasonic LX100 II
 
Panasonic FZ82« »+ +-4.5/5-4.5/5 Jan 2017 399 i i Panasonic FZ82
 
Panasonic LX5« »+73/1004.5/55/54.5/5 Jul 2010 499- i Panasonic LX5
 
Pentax 645D« »---4.5/5- Mar 2010 9,995- i Pentax 645D
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Panasonic TZ90:
Check Ebay offers
Pentax 645Z:
Check Amazon price

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Panasonic TZ90 vs Pentax 645Z

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Panasonic TZ90 Pentax 645Z
    Camera Type Fixed lens compact camera Digital single lens reflex
    Camera Lens 24-720mm f/3.3-6.4 Pentax 645 mount lenses
    Launch Date April 2017 April 2014
    Launch Price USD 449 USD 8499
    Sensor Specs Panasonic TZ90 Pentax 645Z
    Sensor Technology BSI-CMOS CMOS
    Sensor Format 1/2.3" Sensor Medium Format Sensor
    Sensor Size 6.17 x 4.55 mm 43.8 x 32.8 mm
    Sensor Area 28.0735 mm2 1436.64 mm2
    Sensor Diagonal 7.7 mm 54.7 mm
    Crop Factor 5.6x 0.79x
    Sensor Resolution 20.2 Megapixels 51.1 Megapixels
    Image Resolution 5184 x 3888 pixels 8256 x 6192 pixels
    Pixel Pitch 1.18 μm 5.30 μm
    Pixel Density 71.80 MP/cm2 3.56 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 1080/60i Video
    ISO Setting 80-3200 ISO 100-204800 ISO
    ISO Boost 80-6400 ISO no Enhancement
    Image Processor Venus PRIME III
    DXO Sensor Quality (score) 36 101
    DXO Color Depth (bits) 19.1 26.0
    DXO Dynamic Range (EV) 10.6 14.7
    DXO Low Light (ISO) 106 4505
    Screen Specs Panasonic TZ90 Pentax 645Z
    Viewfinder Type Electronic viewfinder Optical viewfinder
    Viewfinder Field of View 100% 98%
    Viewfinder Magnification 0.46x 0.78x
    Viewfinder Resolution 1166k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.2 inch
    LCD Resolution 1040k dots 1037k dots
    LCD Attachment Tilting screen Tilting screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Panasonic TZ90 Pentax 645Z
    Autofocus System Contrast-detect AF Phase-detect AF
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/2000/s 1/4000/s
    Continuous Shooting 10 shutter flaps/s 3 shutter flaps/s
    Electronic Shutterup to 1/16000sno E-Shutter
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support UHS-I UHS-I
    Connectivity Specs Panasonic TZ90 Pentax 645Z
    External Flash no Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.0
    HDMI Port micro HDMI mini HDMI
    Microphone Port no MIC socket External MIC port
    Wifi Support Wifi built-in no Wifi
    Body Specs Panasonic TZ90 Pentax 645Z
    Environmental SealingNot weather sealedWeathersealed body
    Battery Type DMW-BLG10 D-LI90
    Battery Life (CIPA)380 shots per charge650 shots per charge
    In-Camera Charging USB charging no USB charging
    Body Dimensions 112 x 67 x 41 mm
    (4.4 x 2.6 x 1.6 in)
    156 x 117 x 123 mm
    (6.1 x 4.6 x 4.8 in)
    Camera Weight 322 g (11.4 oz) 1550 g (54.7 oz)

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