Pentax X90 vs Sony A7c
69 Imaging
35 Features
34 Overall
34
78 Imaging
75 Features
88 Overall
80
Pentax X90 vs Sony A7c Key Specs
(Full Review)
- 12MP - 1/2.3" Sensor
- 2.7" Fixed Screen
- ISO 80 - 6400
- Sensor-shift Image Stabilization
- 1280 x 720 video
- 26-676mm (F2.8-5.0) lens
- 428g - 111 x 85 x 110mm
- Revealed July 2010
(Full Review)
- 24MP - Full frame Sensor
- 3" Fully Articulated Screen
- ISO 100 - 51200 (Boost to 204800)
- Sensor based 5-axis Image Stabilization
- 3840 x 2160 video
- Sony E Mount
- 509g - 124 x 71 x 60mm
- Released September 2020
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Lets look more closely at the Pentax X90 vs Sony A7c, former being a Small Sensor Superzoom while the latter is a Advanced Mirrorless by companies Pentax and Sony. There is a sizable difference between the resolutions of the X90 (12MP) and A7c (24MP) and the X90 (1/2.3") and A7c (Full frame) offer totally different sensor size.
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe X90 was released 11 years earlier than the A7c and that is quite a significant difference as far as tech is concerned. Both cameras have different body design with the Pentax X90 being a SLR-like (bridge) camera and the Sony A7c being a Rangefinder-style mirrorless camera.
Before we go straight to a more detailed comparison, here is a quick overview of how the X90 grades versus the A7c for portability, imaging, features and an overall rating.
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Below is a preview of the gallery photos for Pentax X90 & Sony Alpha A7c. The complete galleries are viewable at Pentax X90 Gallery & Sony A7c Gallery.
Reasons to pick Pentax X90 over the Sony A7c
| X90 | A7c |
|---|
Reasons to pick Sony A7c over the Pentax X90
| A7c | X90 | |||
|---|---|---|---|---|
| Released | September 2020 | July 2010 | Fresher by 124 months | |
| Screen type | Fully articulated | Fixed | Fully Articulating screen | |
| Screen dimensions | 3" | 2.7" | Bigger screen (+0.3") | |
| Screen resolution | 922k | 230k | Crisper screen (+692k dot) | |
| Selfie screen | Take selfies | |||
| Touch screen | Quickly navigate |
Common features in the Pentax X90 and Sony A7c
| X90 | A7c | |||
|---|---|---|---|---|
| Manually focus | Dial precise focusing |
Pentax X90 vs Sony A7c Physical Comparison
When you are aiming to carry your camera frequently, you will want to factor its weight and dimensions. The Pentax X90 enjoys outer measurements of 111mm x 85mm x 110mm (4.4" x 3.3" x 4.3") with a weight of 428 grams (0.94 lbs) and the Sony A7c has dimensions of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") with a weight of 509 grams (1.12 lbs).
Analyze the Pentax X90 vs Sony A7c in our newest Camera & Lens Size Comparison Tool.
Remember that, the weight of an ILC will differ based on the lens you are working with at that moment. Here is a front view measurements comparison of the X90 and the A7c.

Considering size and weight, the portability rating of the X90 and A7c is 69 and 78 respectively.
Pentax X90 vs Sony A7c Sensor Comparison
Generally, it can be hard to see the gap between sensor sizing just by reading through technical specs. The graphic here may offer you a far better sense of the sensor sizing in the X90 and A7c.
As you have seen, each of the cameras have different megapixels and different sensor sizing. The X90 due to its tinier sensor will make getting bokeh trickier and the Sony A7c will give you extra detail as a result of its extra 12MP. Higher resolution will let you crop photographs a bit more aggressively. The older X90 is going to be behind with regard to sensor innovation.
Pentax X90 vs Sony A7c Screen and ViewFinder
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Pentax X90 vs Sony A7c Specifications
| Pentax X90 | Sony Alpha A7c | |
|---|---|---|
| General Information | ||
| Brand Name | Pentax | Sony |
| Model | Pentax X90 | Sony Alpha A7c |
| Type | Small Sensor Superzoom | Advanced Mirrorless |
| Revealed | 2010-07-06 | 2020-09-14 |
| Body design | SLR-like (bridge) | Rangefinder-style mirrorless |
| Sensor Information | ||
| Powered by | Prime | - |
| Sensor type | CCD | BSI-CMOS |
| Sensor size | 1/2.3" | Full frame |
| Sensor dimensions | 6.08 x 4.56mm | 35.8 x 23.8mm |
| Sensor surface area | 27.7mm² | 852.0mm² |
| Sensor resolution | 12 megapixel | 24 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
| Peak resolution | 4000 x 3000 | 6000 x 4000 |
| Highest native ISO | 6400 | 51200 |
| Highest enhanced ISO | - | 204800 |
| Min native ISO | 80 | 100 |
| RAW support | ||
| Min enhanced ISO | - | 50 |
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| AF continuous | ||
| AF single | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| Multi area AF | ||
| Live view AF | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Number of focus points | 9 | 693 |
| Lens | ||
| Lens mounting type | fixed lens | Sony E |
| Lens focal range | 26-676mm (26.0x) | - |
| Max aperture | f/2.8-5.0 | - |
| Macro focus distance | 1cm | - |
| Number of lenses | - | 122 |
| Crop factor | 5.9 | 1 |
| Screen | ||
| Screen type | Fixed Type | Fully articulated |
| Screen diagonal | 2.7" | 3" |
| Screen resolution | 230k dot | 922k dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | Electronic |
| Viewfinder resolution | - | 2,360k dot |
| Viewfinder coverage | - | 100 percent |
| Viewfinder magnification | - | 0.59x |
| Features | ||
| Minimum shutter speed | 4 seconds | 30 seconds |
| Fastest shutter speed | 1/4000 seconds | 1/4000 seconds |
| Fastest silent shutter speed | - | 1/8000 seconds |
| Continuous shutter speed | - | 10.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash range | 9.10 m | no built-in flash |
| Flash modes | - | no built-in flash |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) | 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM |
| Highest video resolution | 1280x720 | 3840x2160 |
| Video file format | Motion JPEG | MPEG-4, XAVC S, H.264 |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 3.2 Gen 1 (5 GBit/sec) |
| GPS | None | None |
| Physical | ||
| Environment seal | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 428 grams (0.94 lb) | 509 grams (1.12 lb) |
| Physical dimensions | 111 x 85 x 110mm (4.4" x 3.3" x 4.3") | 124 x 71 x 60mm (4.9" x 2.8" x 2.4") |
| DXO scores | ||
| DXO Overall score | not tested | not tested |
| DXO Color Depth score | not tested | not tested |
| DXO Dynamic range score | not tested | not tested |
| DXO Low light score | not tested | not tested |
| Other | ||
| Battery life | - | 740 shots |
| Battery form | - | Battery Pack |
| Battery model | D-L106 | NP-FZ100 |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
| Time lapse feature | ||
| Type of storage | SD/SDHC, Internal | SD/SDHC/SDXC card (UHS-II supported) |
| Storage slots | 1 | 1 |
| Pricing at release | $350 | $1,800 |