Leica M8 vs Pentax 645D
The Leica M8 and the Pentax 645D are two digital cameras that were officially introduced, respectively, in September 2006 and March 2010. The M8 is a rangefinder-focusing mirrorless camera, while the 645D is a DSLR. The cameras are based on an APS-H (M8) and a medium format (645D) sensor. The Leica has a resolution of 10.4 megapixels, whereas the Pentax provides 39.5 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 Leica M8 and the Pentax 645D? 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 Leica M8 and the Pentax 645D. 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 dimensions are rounded to the nearest millimeter.
The M8 can be obtained in two different colors (black, silver), while the 645D is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is considerably larger (64 percent) than the Leica M8. Moreover, the 645D is substantially heavier (150 percent) than the M8. It is noteworthy in this context that the 645D is splash and dust-proof, while the M8 does not feature any corresponding weather-sealing.
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 M8 gets 550 shots out of its Leica BLI-312 battery, while the 645D can take 800 images on a single charge of its Pentax D-LI90 power pack.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Leica M8 | 139 mm | 80 mm | 37 mm | 591 g | 550 | n | Sep 2006 | 5,499 | ebay.com | |
2. | Pentax 645D | 156 mm | 117 mm | 119 mm | 1480 g | 800 | Y | Mar 2010 | 9,995 | ebay.com | |
3. | Canon 1D Mark IV | 156 mm | 157 mm | 80 mm | 1230 g | 1500 | Y | Oct 2009 | 4,999 | ebay.com | |
4. | Canon 1D X | 158 mm | 168 mm | 83 mm | 1551 g | 1120 | Y | Oct 2011 | 6,799 | ebay.com | |
5. | Canon 400D | 127 mm | 84 mm | 65 mm | 556 g | 370 | n | Aug 2006 | 799 | ebay.com | |
6. | Canon 1100D | 130 mm | 100 mm | 78 mm | 495 g | 700 | n | Feb 2011 | 449 | ebay.com | |
7. | Leica M Typ 262 | 139 mm | 80 mm | 42 mm | 680 g | 400 | Y | Nov 2015 | 5,195 | ebay.com | |
8. | Leica M9 | 139 mm | 80 mm | 37 mm | 585 g | 550 | n | Sep 2009 | 7,999 | ebay.com | |
9. | Leica M10 | 139 mm | 80 mm | 39 mm | 660 g | 210 | Y | Jan 2017 | 6,595 | ebay.com | |
10. | Leica S Typ 006 | 160 mm | 120 mm | 80 mm | 1260 g | .. | Y | Sep 2012 | 21,950 | ebay.com | |
11. | Nikon D3S | 160 mm | 157 mm | 88 mm | 1240 g | 4200 | Y | Oct 2009 | 5,199 | ebay.com | |
12. | Nikon D40X | 124 mm | 94 mm | 64 mm | 522 g | 520 | n | Mar 2007 | 729 | ebay.com | |
13. | Nikon D80 | 132 mm | 103 mm | 77 mm | 668 g | 600 | n | Aug 2006 | 999 | ebay.com | |
14. | Nikon D3000 | 126 mm | 97 mm | 64 mm | 536 g | 500 | n | Jul 2009 | 599 | ebay.com | |
15. | Nikon D5000 | 127 mm | 104 mm | 80 mm | 590 g | 510 | n | Apr 2009 | 749 | ebay.com | |
16. | Panasonic L10 | 135 mm | 96 mm | 78 mm | 556 g | 450 | n | Aug 2007 | 599 | ebay.com | |
17. | Pentax 645Z | 156 mm | 117 mm | 123 mm | 1550 g | 650 | Y | Apr 2014 | 8,499 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The M8 was launched at a markedly lower price (by 45 percent) than the 645D, 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Leica M8 features an APS-H sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 199 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 0.79. The sensor in the M8 has a native 3:2 aspect ratio, while the one in the 645D offers a 4:3 aspect.
With 39.5MP, the 645D offers a higher resolution than the M8 (10.4MP), but the 645D has smaller individual pixels (pixel pitch of 6.06μm versus 6.84μm for the M8). Yet, the 645D is a much more recent model (by 3 years and 5 months) than the M8, 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 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Leica M8 are 19.7 x 13.2 inches or 50 x 33.4 cm for good quality, 15.7 x 10.5 inches or 40 x 26.7 cm for very good quality, and 13.1 x 8.8 inches or 33.3 x 22.3 cm for excellent quality prints.
The Leica M8 has a native sensitivity range from ISO 160 to ISO 2500. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).
Technology-wise, both cameras are equipped with CCD (Charged Coupled Device) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 645D offers substantially better image quality than the M8 (overall score 23 points higher). The advantage is based on 3.5 bits higher color depth, 1.3 EV in additional dynamic range, and 0.9 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Leica M8 | APS-H | 10.4 | 3936 | 2630 | none | 21.1 | 11.3 | 663 | 59 | |
2. | Pentax 645D | Medium Format | 39.5 | 7264 | 5440 | none | 24.6 | 12.6 | 1262 | 82 | |
3. | Canon 1D Mark IV | APS-H | 16.0 | 4896 | 3264 | 1080/30p | 22.8 | 12.0 | 1320 | 74 | |
4. | Canon 1D X | Full Frame | 17.9 | 5184 | 3456 | 1080/30p | 23.8 | 11.8 | 2786 | 82 | |
5. | Canon 400D | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.0 | 664 | 62 | |
6. | Canon 1100D | APS-C | 12.2 | 4272 | 2848 | 720/30p | 21.9 | 11.0 | 755 | 62 | |
7. | Leica M Typ 262 | Full Frame | 23.7 | 5952 | 3976 | none | 24.8 | 13.7 | 2478 | 90 | |
8. | Leica M9 | Full Frame | 18.1 | 5212 | 3472 | none | 22.5 | 11.7 | 884 | 69 | |
9. | Leica M10 | Full Frame | 23.8 | 5952 | 3992 | none | 24.4 | 13.2 | 2133 | 86 | |
10. | Leica S Typ 006 | Medium Format | 37.5 | 7500 | 5000 | none | 23.9 | 12.2 | 824 | 76 | |
11. | Nikon D3S | Full Frame | 12.1 | 4256 | 2832 | 720/24p | 23.5 | 12.0 | 3253 | 82 | |
12. | Nikon D40X | APS-C | 10.0 | 3872 | 2592 | none | 22.4 | 11.4 | 516 | 63 | |
13. | Nikon D80 | APS-C | 10.0 | 3872 | 2592 | none | 22.1 | 11.2 | 524 | 61 | |
14. | Nikon D3000 | APS-C | 10.0 | 3872 | 2592 | none | 22.3 | 11.1 | 563 | 62 | |
15. | Nikon D5000 | APS-C | 12.2 | 4288 | 2848 | 720/24p | 22.7 | 12.5 | 868 | 72 | |
16. | Panasonic L10 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.3 | 10.8 | 429 | 55 | |
17. | Pentax 645Z | Medium Format | 51.1 | 8256 | 6192 | 1080/60i | 26.0 | 14.7 | 4505 | 101 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Feature comparison
Beyond body and sensor, cameras can and do differ across a range of features. The M8 and the 645D are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The adjacent table lists some of the other core features of the Leica M8 and Pentax 645D along with similar information for a selection of comparators.
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. | Leica M8 | optical | n | 2.5 / 230 | fixed | n | 1/8000s | 2.0/s | n | n | |
2. | Pentax 645D | optical | Y | 3.0 / 921 | fixed | n | 1/4000s | 1.1/s | n | n | |
3. | Canon 1D Mark IV | optical | Y | 3.0 / 920 | fixed | n | 1/8000s | 10.0/s | n | n | |
4. | Canon 1D X | optical | Y | 3.2 / 1040 | fixed | n | 1/8000s | 14.0/s | n | n | |
5. | Canon 400D | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
6. | Canon 1100D | optical | n | 2.7 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
7. | Leica M Typ 262 | optical | n | 3.0 / 921 | fixed | n | 1/4000s | 3.0/s | n | n | |
8. | Leica M9 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 2.0/s | n | n | |
9. | Leica M10 | optical | n | 3.0 / 1037 | fixed | n | 1/4000s | 5.0/s | n | n | |
10. | Leica S Typ 006 | optical | Y | 3.0 / 922 | fixed | n | 1/4000s | 1.5/s | n | n | |
11. | Nikon D3S | optical | Y | 3.0 / 921 | fixed | n | 1/8000s | 11.0/s | n | n | |
12. | Nikon D40X | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
13. | Nikon D80 | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
14. | Nikon D3000 | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
15. | Nikon D5000 | optical | n | 2.7 / 230 | full-flex | n | 1/4000s | 4.0/s | Y | n | |
16. | Panasonic L10 | optical | n | 2.5 / 207 | swivel | n | 1/4000s | 3.0/s | Y | n | |
17. | Pentax 645Z | optical | Y | 3.2 / 1037 | tilting | n | 1/4000s | 3.0/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 645D, but is missing on the M8 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 Pentax 645D 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 M8 and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the M8 only has one slot.
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 Leica M8 and Pentax 645D 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. | Leica M8 | Y | - / - | - | - | - | 2.0 | - | - | - | |
2. | Pentax 645D | Y | stereo / - | - | - | - | 2.0 | - | - | - | |
3. | Canon 1D Mark IV | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
4. | Canon 1D X | Y | mono / - | Y | - | mini | 2.0 | - | - | - | |
5. | Canon 400D | Y | - / - | - | - | - | 2.0 | - | - | - | |
6. | Canon 1100D | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
7. | Leica M Typ 262 | Y | - / - | - | - | - | 2.0 | - | - | - | |
8. | Leica M9 | Y | - / - | - | - | - | 2.0 | - | - | - | |
9. | Leica M10 | Y | - / - | - | - | - | - | Y | - | - | |
10. | Leica S Typ 006 | Y | - / - | - | - | mini | 2.0 | - | - | - | |
11. | Nikon D3S | Y | stereo / - | - | - | mini | 2.0 | - | - | - | |
12. | Nikon D40X | Y | - / - | - | - | - | 2.0 | - | - | - | |
13. | Nikon D80 | Y | - / - | - | - | - | 2.0 | - | - | - | |
14. | Nikon D3000 | Y | - / - | - | - | - | 2.0 | - | - | - | |
15. | Nikon D5000 | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
16. | Panasonic L10 | Y | - / - | - | - | - | 2.0 | - | - | - | |
17. | Pentax 645Z | Y | stereo / mono | Y | - | mini | 3.0 | - | - | - |
Studio photographers will appreciate that the Pentax 645D (unlike the M8) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the M8 and the 645D have been discontinued, but can regularly be found used on ebay. The M8 was replaced by the Leica M9, while the 645D was followed by the Pentax 645Z. Further information on the features and operation of the M8 and 645D can be found, respectively, in the Leica M8 Manual (free pdf) or the online Pentax 645D Manual.
Review summary
So what conclusions can be drawn? Is the Leica M8 better than the Pentax 645D or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Leica M8:
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (2 vs 1.1 flaps/sec) to capture the decisive moment.
- More compact: Is smaller (139x80mm vs 156x117mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 889g or 60 percent) and hence easier to carry around.
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More affordable: Was introduced into a lower priced category (45 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in September 2006).
Advantages of the Pentax 645D:
- More detail: Has more megapixels (39.5 vs 10.4MP), which boosts linear resolution by 92%.
- Better image quality: Scores substantially higher (23 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (3.5 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (1.3 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (0.9 stops ISO advantage).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Gets more shots (800 versus 550) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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 modern: Reflects 3 years and 5 months of technical progress since the M8 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 645D is the clear winner of the contest (14 : 7 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 sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the M8 or the 645D. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
Expert reviews
This is why expert reviews are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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. | Leica M8 | .. | .. | .. | + + | .. | .. | Sep 2006 | 5,499 | ebay.com | |
2. | Pentax 645D | 5/5 | .. | .. | .. | .. | .. | Mar 2010 | 9,995 | ebay.com | |
3. | Canon 1D Mark IV | 5/5 | .. | .. | 89/100 | .. | .. | Oct 2009 | 4,999 | ebay.com | |
4. | Canon 1D X | 5/5 | .. | .. | .. | 4.5/5 | 4.5/5 | Oct 2011 | 6,799 | ebay.com | |
5. | Canon 400D | .. | + + | .. | + + | o | 4/5 | Aug 2006 | 799 | ebay.com | |
6. | Canon 1100D | .. | 80/100 | .. | 69/100 | 4/5 | 4.5/5 | Feb 2011 | 449 | ebay.com | |
7. | Leica M Typ 262 | .. | .. | .. | .. | .. | .. | Nov 2015 | 5,195 | ebay.com | |
8. | Leica M9 | .. | .. | .. | .. | 4.5/5 | .. | Sep 2009 | 7,999 | ebay.com | |
9. | Leica M10 | 4.5/5 | .. | .. | .. | 4/5 | 4.5/5 | Jan 2017 | 6,595 | ebay.com | |
10. | Leica S Typ 006 | .. | .. | .. | .. | .. | .. | Sep 2012 | 21,950 | ebay.com | |
11. | Nikon D3S | 5/5 | .. | .. | 89/100 | 4.5/5 | 5/5 | Oct 2009 | 5,199 | ebay.com | |
12. | Nikon D40X | .. | 79/100 | .. | + + | 4/5 | 4/5 | Mar 2007 | 729 | ebay.com | |
13. | Nikon D80 | .. | + | .. | + + | o | 4.5/5 | Aug 2006 | 999 | ebay.com | |
14. | Nikon D3000 | .. | + | .. | 72/100 | 4/5 | 4.5/5 | Jul 2009 | 599 | ebay.com | |
15. | Nikon D5000 | .. | + + | .. | 75/100 | 4/5 | 4.5/5 | Apr 2009 | 749 | ebay.com | |
16. | Panasonic L10 | .. | 85/100 | .. | + | 3.5/5 | 4/5 | Aug 2007 | 599 | ebay.com | |
17. | Pentax 645Z | 5/5 | .. | 3.5/5 | .. | 4.5/5 | 5/5 | Apr 2014 | 8,499 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. 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 a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1200D vs Pentax 645D
- Leica M8 vs Olympus E-PL8
- Leica M8 vs Panasonic G10
- Leica M8 vs Panasonic GF1
- Leica M8 vs Panasonic TZ200
- Leica M8 vs Panasonic ZS70
- Leica M8 vs Sony A7 II
- Nikon Df vs Pentax 645D
- Olympus E-M1X vs Pentax 645D
- Panasonic GX850 vs Pentax 645D
- Pentax 645D vs Sony A7R III
- Pentax 645D vs Sony A7S II
Specifications: Leica M8 vs Pentax 645D
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 | Leica M8 | Pentax 645D |
---|---|---|
Camera Type | Rangefinder camera | Digital single lens reflex |
Camera Lens | Leica M mount lenses | Pentax 645 mount lenses |
Launch Date | September 2006 | March 2010 |
Launch Price | USD 5,499 | USD 9,995 |
Sensor Specs | Leica M8 | Pentax 645D |
Sensor Technology | CCD | CCD |
Sensor Format | APS-H Sensor | Medium Format Sensor |
Sensor Size | 27.0 x 18.0 mm | 44.0 x 33.0 mm |
Sensor Area | 486 mm2 | 1452 mm2 |
Sensor Diagonal | 32.4 mm | 55 mm |
Crop Factor | 1.3x | 0.79x |
Sensor Resolution | 10.4 Megapixels | 39.5 Megapixels |
Image Resolution | 3936 x 2630 pixels | 7264 x 5440 pixels |
Pixel Pitch | 6.84 μm | 6.06 μm |
Pixel Density | 2.13 MP/cm2 | 2.72 MP/cm2 |
Moiré control | no AA filter | no AA filter |
Movie Capability | no Video | no Video |
ISO Setting | 160 - 2,500 ISO | 100 - 1,600 ISO |
DXO Sensor Quality (score) | 59 | 82 |
DXO Color Depth (bits) | 21.1 | 24.6 |
DXO Dynamic Range (EV) | 11.3 | 12.6 |
DXO Low Light (ISO) | 663 | 1262 |
Screen Specs | Leica M8 | Pentax 645D |
Viewfinder Type | Optical viewfinder | Optical viewfinder |
Viewfinder Field of View | 100% | 98% |
Viewfinder Magnification | 0.78x | |
Top-Level Screen | no Top Display | Control Panel |
Rear LCD Size | 2.5inch | 3.0inch |
LCD Resolution | 230k dots | 921k dots |
LCD Attachment | Fixed screen | Fixed screen |
Shooting Specs | Leica M8 | Pentax 645D |
Focus System | Manual Focus | Phase-detect AF |
Continuous Shooting | 2 shutter flaps/s | 1.1 shutter flaps/s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Fill Flash | no On-Board Flash | no On-Board Flash |
Storage Medium | SDXC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Dual card slots |
UHS card support | no | no |
Connectivity Specs | Leica M8 | Pentax 645D |
External Flash | Hotshoe | Hotshoe |
Studio Flash | no PC Sync | PC Sync socket |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | no HDMI | no HDMI |
Wifi Support | no Wifi | no Wifi |
Body Specs | Leica M8 | Pentax 645D |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Leica BLI-312 | Pentax D-LI90 |
Battery Life (CIPA) | 550 shots per charge | 800 shots per charge |
Body Dimensions |
139 x 80 x 37 mm (5.5 x 3.1 x 1.5 in) |
156 x 117 x 119 mm (6.1 x 4.6 x 4.7 in) |
Camera Weight | 591 g (20.8 oz) | 1480 g (52.2 oz) |
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