Pentax 645Z vs Sigma fp L
The Pentax 645Z and the Sigma fp L are two digital cameras that were revealed to the public, respectively, in April 2014 and March 2021. The 645Z is a DSLR, while the fp L is a mirrorless interchangeable lens camera. The cameras are based on a medium format (645Z) and a full frame (fp L) sensor. The Pentax has a resolution of 51.1 megapixels, whereas the Sigma provides 60.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Pentax 645Z and the Sigma fp L? 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
An illustration of the physical size and weight of the Pentax 645Z and the Sigma fp L is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth measures are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sigma fp L is considerably smaller (57 percent) than the Pentax 645Z. Moreover, the fp L is substantially lighter (72 percent) than the 645Z. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the 645Z gets 650 shots out of its Pentax D-LI90 battery, while the fp L can take 240 images on a single charge of its Sigma BP-51 power pack. The power pack in the fp L can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | 8,499 | ebay.com | |
2. | Sigma fp L | 113 mm | 70 mm | 45 mm | 427 g | 240 | Y | Mar 2021 | 2,499 | amazon.com | |
3. | Canon 1D X Mark II | 158 mm | 168 mm | 83 mm | 1530 g | 1210 | Y | Feb 2016 | 5,999 | ebay.com | |
4. | Canon 5DS | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | ebay.com | |
5. | Canon 5DS R | 152 mm | 116 mm | 76 mm | 930 g | 700 | Y | Feb 2015 | 3,699 | ebay.com | |
6. | Fujifilm X100V | 128 mm | 75 mm | 53 mm | 478 g | 420 | Y | Feb 2020 | 1,399 | ebay.com | |
7. | Hasselblad X1D | 150 mm | 98 mm | 71 mm | 725 g | .. | Y | Jun 2016 | 8,995 | ebay.com | |
8. | Leica M11 | 139 mm | 80 mm | 39 mm | 640 g | 700 | Y | Jan 2022 | 8,995 | amazon.com | |
9. | Leica SL | 147 mm | 104 mm | 39 mm | 847 g | 400 | Y | Oct 2015 | 7,450 | ebay.com | |
10. | Nikon D4S | 160 mm | 157 mm | 91 mm | 1350 g | 3020 | Y | Feb 2014 | 6,499 | ebay.com | |
11. | Nikon D5 | 160 mm | 159 mm | 92 mm | 1415 g | 3780 | Y | Jan 2016 | 6,499 | ebay.com | |
12. | Nikon D780 | 144 mm | 116 mm | 76 mm | 840 g | 2260 | Y | Jan 2020 | 2,299 | amazon.com | |
13. | Nikon D7200 | 136 mm | 107 mm | 76 mm | 765 g | 1110 | Y | Mar 2015 | 1,199 | ebay.com | |
14. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | 9,995 | ebay.com | |
15. | Sigma fp | 113 mm | 70 mm | 45 mm | 422 g | 280 | Y | Jul 2019 | 1,899 | amazon.com | |
16. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | 2,299 | ebay.com | |
17. | Sony A7S | 127 mm | 94 mm | 48 mm | 489 g | 380 | Y | Apr 2014 | 2,499 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The fp L was launched at a markedly lower price (by 71 percent) than the 645Z, which puts it into a different market segment. 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. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Pentax 645Z features a medium format sensor and the Sigma fp L a full frame sensor. The sensor area in the fp L is 40 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.79 and 1.0. The sensor in the 645Z has a native 4:3 aspect ratio, while the one in the fp L offers a 3:2 aspect.
Despite having a smaller sensor, the fp L offers a higher resolution of 60.2 megapixels, compared with 51.1 MP of the 645Z. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.79μm versus 5.30μm for the 645Z). However, it should be noted that the fp L is much more recent (by 6 years and 11 months) than the 645Z, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the 645Z has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sigma fp L implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the fp L for good quality output (200 dots per inch) amounts to 47.6 x 31.6 inches or 120.9 x 80.4 cm, for very good quality (250 dpi) 38.1 x 25.3 inches or 96.7 x 64.3 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.6 x 53.6 cm. The corresponding values for the Pentax 645Z are 41.3 x 31 inches or 104.9 x 78.6 cm for good quality, 33 x 24.8 inches or 83.9 x 62.9 cm for very good quality, and 27.5 x 20.6 inches or 69.9 x 52.4 cm for excellent quality prints.
The Pentax 645Z has a native sensitivity range from ISO 100 to ISO 204800. The corresponding ISO settings for the Sigma fp L are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.
In terms of underlying technology, the 645Z is build around a CMOS sensor, while the fp L uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
For many cameras, data on sensor performance has been reported by DXO Mark. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
2. | Sigma fp L | Full Frame | 60.2 | 9520 | 6328 | 4K/30p | 25.3 | 14.4 | 3001 | 96 | |
3. | Canon 1D X Mark II | Full Frame | 20.0 | 5472 | 3648 | 4K/60p | 24.1 | 13.5 | 3207 | 88 | |
4. | Canon 5DS | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.7 | 12.4 | 2381 | 87 | |
5. | Canon 5DS R | Full Frame | 50.3 | 8688 | 5792 | 1080/30p | 24.6 | 12.4 | 2308 | 86 | |
6. | Fujifilm X100V | APS-C | 26.0 | 6240 | 4160 | 4K/30p | 24.2 | 13.6 | 1996 | 84 | |
7. | Hasselblad X1D | Medium Format | 51.3 | 8272 | 6200 | 1080/25p | 26.2 | 14.8 | 4489 | 102 | |
8. | Leica M11 | Full Frame | 60.3 | 9528 | 6328 | none | 26.3 | 14.8 | 3376 | 100 | |
9. | Leica SL | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.0 | 13.4 | 1821 | 88 | |
10. | Nikon D4S | Full Frame | 16.2 | 4928 | 3280 | 1080/60p | 24.4 | 13.3 | 3074 | 89 | |
11. | Nikon D5 | Full Frame | 20.7 | 5588 | 3712 | 4K/30p | 25.1 | 12.3 | 2343 | 88 | |
12. | Nikon D780 | Full Frame | 24.3 | 6048 | 4024 | 4K/30p | 25.3 | 14.3 | 2877 | 95 | |
13. | Nikon D7200 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.5 | 14.6 | 1333 | 87 | |
14. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
15. | Sigma fp | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.2 | 14.2 | 2829 | 94 | |
16. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 | |
17. | Sony A7S | Full Frame | 12.0 | 4240 | 2832 | 1080/60p | 23.9 | 13.2 | 3702 | 87 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the fp L provides a better video resolution than the 645Z. It can shoot movie 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 range of features. For example, the 645Z has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the fp L relies on live view and the rear LCD for framing. That said, the fp L can be equipped with an optional viewfinder – the EVF-11. The table below summarizes some of the other core capabilities of the Pentax 645Z and Sigma fp L in connection with corresponding information for a sample of similar cameras.
Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/s | n | n | |
2. | Sigma fp L | optional | n | 3.2 / 2100 | fixed | Y | 1/8000s | 10.0/s | n | n | |
3. | Canon 1D X Mark II | optical | Y | 3.2 / 1620 | fixed | Y | 1/8000s | 16.0/s | n | n | |
4. | Canon 5DS | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
5. | Canon 5DS R | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 5.0/s | n | n | |
6. | Fujifilm X100V | 3690 | n | 3.0 / 1620 | tilting | Y | 1/4000s | 11.0/s | n | n | |
7. | Hasselblad X1D | 2360 | n | 3.0 / 920 | fixed | Y | 1/2000s | 2.3/s | n | n | |
8. | Leica M11 | optical | n | 3.0 / 2333 | fixed | Y | 1/4000s | 4.5/s | n | n | |
9. | Leica SL | 4400 | Y | 3.0 / 1040 | fixed | Y | 1/8000s | 11.0/s | n | n | |
10. | Nikon D4S | optical | Y | 3.2 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
11. | Nikon D5 | optical | Y | 3.2 / 2359 | fixed | Y | 1/8000s | 14.0/s | n | n | |
12. | Nikon D780 | optical | Y | 3.2 / 2359 | tilting | Y | 1/8000s | 12.0/s | n | n | |
13. | Nikon D7200 | optical | Y | 3.2 / 1229 | fixed | n | 1/8000s | 6.0/s | Y | n | |
14. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
15. | Sigma fp | optional | n | 3.2 / 2100 | fixed | Y | 1/8000s | 12.0/s | n | n | |
16. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
17. | Sony A7S | 2400 | n | 3.0 / 921 | tilting | n | 1/8000s | 5.0/s | n | n | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One feature that is present on the 645Z, but is missing on the fp L is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.
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 fp L 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 and the Sigma fp L both have 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 645Z and the fp L 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 fp L only has one slot. The fp L supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the 645Z can use UHS-I cards (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 Pentax 645Z and Sigma fp L and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - | |
2. | Sigma fp L | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | - | |
3. | Canon 1D X Mark II | Y | mono / mono | Y | Y | mini | 3.0 | - | - | - | |
4. | Canon 5DS | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
5. | Canon 5DS R | Y | mono / mono | Y | - | mini | 3.0 | - | - | - | |
6. | Fujifilm X100V | Y | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
7. | Hasselblad X1D | Y | stereo / mono | Y | Y | mini | 3.0 | Y | - | - | |
8. | Leica M11 | Y | - / - | - | - | - | 3.2 | Y | - | Y | |
9. | Leica SL | Y | stereo / mono | Y | Y | full | 3.0 | Y | - | - | |
10. | Nikon D4S | Y | mono / mono | Y | Y | mini | 2.0 | - | - | - | |
11. | Nikon D5 | Y | stereo / mono | Y | Y | mini | 3.0 | - | - | - | |
12. | Nikon D780 | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
13. | Nikon D7200 | Y | stereo / mono | Y | Y | mini | 2.0 | Y | Y | - | |
14. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - | |
15. | Sigma fp | Y | stereo / mono | Y | - | micro | 3.1 | - | - | - | |
16. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
17. | Sony A7S | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
It is notable that the fp L offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 645Z does not provide wifi capability.
Studio photographers will appreciate that the Pentax 645Z (unlike the fp L) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The fp L is a recent model that features in the current product line-up of Sigma. In contrast, the 645Z has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the 645Z from Pentax. Further information on the features and operation of the 645Z and fp L can be found, respectively, in the Pentax 645Z Manual (free pdf) or the online Sigma fp L Manual.
Review summary
So what is the bottom line? Which of the two cameras – the Pentax 645Z or the Sigma fp L – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Pentax 645Z:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Longer lasting: Can take more shots (650 versus 240) on a single battery charge.
- 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 available for much longer (launched in April 2014).
Advantages of the Sigma fp L:
- More detail: Has more megapixels (60.2 vs 51.1MP), which boosts linear resolution by 11%.
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60i).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed LCD: Has a higher resolution rear screen (2100k vs 1037k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- 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.
- More compact: Is smaller (113x70mm vs 156x117mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 1123g or 72 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More affordable: Was introduced into a lower priced category (71 percent cheaper at launch).
- More modern: Reflects 6 years and 11 months of technical progress since the 645Z launch.
If the count of relative strengths (bullet points above) is taken as a measure, the fp L is the clear winner of the contest (17 : 8 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Pentax 645Z and the Sigma fp L place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 645Z and the fp L 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 why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.
Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | 8,499 | ebay.com | |
2. | Sigma fp L | 4/5 | .. | 4/5 | .. | 4/5 | 4/5 | Mar 2021 | 2,499 | amazon.com | |
3. | Canon 1D X Mark II | .. | .. | 4.5/5 | 89/100 | 4.5/5 | 4.5/5 | Feb 2016 | 5,999 | ebay.com | |
4. | Canon 5DS | .. | + | .. | 83/100 | 4.5/5 | 4.5/5 | Feb 2015 | 3,699 | ebay.com | |
5. | Canon 5DS R | 5/5 | + | .. | 83/100 | 5/5 | 4.5/5 | Feb 2015 | 3,699 | ebay.com | |
6. | Fujifilm X100V | 5/5 | + + | 4.5/5 | 86/100 | 5/5 | 4.5/5 | Feb 2020 | 1,399 | ebay.com | |
7. | Hasselblad X1D | .. | o | .. | 81/100 | .. | 4/5 | Jun 2016 | 8,995 | ebay.com | |
8. | Leica M11 | 4.5/5 | .. | 4.5/5 | .. | 4.5/5 | 4.5/5 | Jan 2022 | 8,995 | amazon.com | |
9. | Leica SL | 4/5 | .. | 4/5 | 84/100 | 4.5/5 | 4/5 | Oct 2015 | 7,450 | ebay.com | |
10. | Nikon D4S | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Feb 2014 | 6,499 | ebay.com | |
11. | Nikon D5 | .. | .. | 4/5 | 89/100 | 4.5/5 | 5/5 | Jan 2016 | 6,499 | ebay.com | |
12. | Nikon D780 | 5/5 | .. | 5/5 | 87/100 | 4.5/5 | 4.5/5 | Jan 2020 | 2,299 | amazon.com | |
13. | Nikon D7200 | 4/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Mar 2015 | 1,199 | ebay.com | |
14. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | 9,995 | ebay.com | |
15. | Sigma fp | 4/5 | .. | 4/5 | .. | 4/5 | 4.5/5 | Jul 2019 | 1,899 | amazon.com | |
16. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | 2,299 | ebay.com | |
17. | Sony A7S | 4/5 | .. | .. | 86/100 | 4.5/5 | 5/5 | Apr 2014 | 2,499 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 850D vs Sigma fp L
- Canon 90D vs Sigma fp L
- Canon R6 vs Pentax 645Z
- Canon R7 vs Sigma fp L
- Fujifilm GFX 50S vs Pentax 645Z
- Fujifilm X100V vs Sigma fp L
- Nikon Z6 vs Pentax 645Z
- Panasonic S5 vs Sigma fp L
- Panasonic ZS80 vs Pentax 645Z
- Pentax 645Z vs Sony A9
- Pentax 645Z vs Sony RX100 III
- Sigma fp L vs Sony RX100 VI
Specifications: Pentax 645Z vs Sigma fp L
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 Model | Pentax 645Z | Sigma fp L |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Pentax 645 mount lenses | Leica L mount lenses |
Launch Date | April 2014 | March 2021 |
Launch Price | USD 8,499 | USD 2,499 |
Sensor Specs | Pentax 645Z | Sigma fp L |
Sensor Technology | CMOS | BSI-CMOS |
Sensor Format | Medium Format Sensor | Full Frame Sensor |
Sensor Size | 43.8 x 32.8 mm | 36.0 x 24.0 mm |
Sensor Area | 1436.64 mm2 | 864 mm2 |
Sensor Diagonal | 54.7 mm | 43.3 mm |
Crop Factor | 0.79x | 1.0x |
Sensor Resolution | 51.1 Megapixels | 60.2 Megapixels |
Image Resolution | 8256 x 6192 pixels | 9520 x 6328 pixels |
Pixel Pitch | 5.30 μm | 3.79 μm |
Pixel Density | 3.56 MP/cm2 | 6.97 MP/cm2 |
Moiré control | no AA filter | Anti-Alias filter |
Movie Capability | 1080/60i Video | 4K/30p Video |
ISO Setting | 100 - 204,800 ISO | 100 - 25,600 ISO |
ISO Boost | no Enhancement | 6 - 102,400 ISO |
DXO Sensor Quality (score) | 101 | .. |
DXO Color Depth (bits) | 26.0 | .. |
DXO Dynamic Range (EV) | 14.7 | .. |
DXO Low Light (ISO) | 4505 | .. |
Screen Specs | Pentax 645Z | Sigma fp L |
Viewfinder Type | Optical viewfinder | Viewfinder optional |
Viewfinder Field of View | 98% | |
Viewfinder Magnification | 0.78x | |
Top-Level Screen | Control Panel | no Top Display |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.2inch | 3.2inch |
LCD Resolution | 1037k dots | 2100k dots |
LCD Attachment | Tilting screen | Fixed screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Pentax 645Z | Sigma fp L |
Focus System | Phase-detect AF | Contrast-detect AF |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 3 shutter flaps/s | 10 shutter flaps/s |
Electronic Shutter | no E-Shutter | up to 1/8000s |
Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Dual card slots | Single card slot |
UHS card support | UHS-I | UHS-II |
Connectivity Specs | Pentax 645Z | Sigma fp L |
External Flash | Hotshoe | Hotshoe |
Studio Flash | PC Sync socket | no PC Sync |
USB Connector | USB 3.0 | USB 3.2 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | Wifi built-in |
Body Specs | Pentax 645Z | Sigma fp L |
Environmental Sealing | Weathersealed body | Weathersealed body |
Battery Type | Pentax D-LI90 | Sigma BP-51 |
Battery Life (CIPA) | 650 shots per charge | 240 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
156 x 117 x 123 mm (6.1 x 4.6 x 4.8 in) |
113 x 70 x 45 mm (4.4 x 2.8 x 1.8 in) |
Camera Weight | 1550 g (54.7 oz) | 427 g (15.1 oz) |
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