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OM System OM-1 II : Specifications and Opinions

The OM System OM-1 II is a mirrorless camera with 4/3 (2.0x) sensor and 20.4 megapixels manufactured from 2024.

27 users have given it an average vote of 9.7 out of 10

Sensor
Format	4/3, 17.4 x 13 mm (image ratio 4:3, crop factor 2.0x in comparison with FF)
Resolution	20.4 megapixel (pixel pitch 3.35 μm)
Sensor type	CMOS BSI Stacked (sensor readout: 1/125)
ISO sensitivities	80 - 102400
File formats	JPEG, RAW
Esposure
Shutter speeds	60" - 1/32000
Exp. compensation	+/- 5 stops at 1/3 steps
Exp. modes	M, S, A, P
Metering modes	Multi-Area, Semi-Spot, Spot
Features
Mount	Micro 4/3 (click here to view all compatible lenses)
Stabilization	Yes
Continuos shooting (with autofocus)	20 FPS x 220 RAW, 230 JPEG
Pre-Burst	Yes
Live View	Yes
Video mode	C4K (4096x2160p) @ 60 FPS
WiFi	Yes
GPS	No
USB	USB-C (3.2)
USB Charging	Yes
Computing Features
ND Long Exposure	Yes, up to 128 photos (ND7)
Pixel Shift	Yes, in-camera (80 megapixel)
Focus Stacking	Yes, in-camera
Startrail/Composite mode	Yes
Astrotracer	No
Camera body and built
Touchscreen	Yes
LCD	3.0″, 1.62 Mdots, 900 x 600 pixels, fully articulating
Viewfinder	Electronic, coverage 100%, 1.48x
Viewfinder resolution	1600 x 1200 px
Flash	No
Storage	SD, SDHC, SDXC (UHS-II)
Storage, Slot 2	SD, SDHC, SDXC (UHS-II)
Shutter	Mechanical and electronic
Battery	OM System BLX-1, 16.40 Wh
Weather sealing	Yes
Weight	599 g
Dimensions	135 x 92 x 73 mm
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Reviews

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The following opinions have been automatically translated with Google Translate.

Docalende

sent on 01 Ottobre 2025

Pros: Great camera, great ergonomics, image quality, computational functions

Cons: Price

Opinion: Purchased to support (first) and replace (then) my Lumix S9. Although the S9 had excellent image quality and a small body, on full-frame it is the lenses, especially if zoomed, that nullify any dimensional advantage of the camera. The OM-1 Mark II guarantees a fantastic grip, a small size with the 12-40 f2.8 in a perfectly balanced body that is a pleasure to use. I didn't have any problems in low light or bokeh, things that are typically highly criticized in the micro4/3 format. You obviously have to know what you use and how to use it to make it perform at its best, but understood this is truly a camera lady. The build quality is incredible, the ergonomics are incredible, the computational functions are fantastic and the high res with 14-bit raw allows recoveries absolutely comparable to the full frame I used before. If I had to complain about one thing it would be the price, however quite high and with the OM-3 that guarantees a use comparable to a lower price (but with worse ergonomics) or the G9 II (but without computational functions and with a clumsy camera body for the micro4/3).

Fabiosestu.photography

sent on 15 Maggio 2025

Pros: Excellent camera, excellent autofocus, super sharpness, photonic build quality, excellent ND filters and super resolution!

Cons: For now, no one

Opinion: I went from the OM-D EM-10 Mark IV to the OM-1 Mark II and I have to say that there was a significant leap in all respects. I thought it was much bigger but it's not that bulky and heavy, you feel that you're dealing with a more professional camera and another level. I like it a lot in all respects, battery that lasts a long time, superlative image quality, the small sensor?! Honestly I don't feel so much of a problem despite having had an FF. For me, the OM-1 remains a super and noteworthy machine!

Cicloreporter

sent on 17 Luglio 2024

Pros: build quality; finally a reliable face recognition; very responsive; some computational functions that are also useful in the real world (GND)

Cons: Unable to customize MAF square color. AEL lever too small and uncomfortable to be used as an on/off.

Opinion: I invested in the mark II at the end of April, in view of new more complex and more frequent jobs (sports/cycling/adventure photography). I didn't regret it at all. Of course, like everything it can be improved, and some details make me turn up my nose, such as the lack of color customization of the MAF that makes me lose the cursor quite often (only using the LCD screen, of course). But overall it is reliable, robust, sufficiently performing in CAF and with face recognition, which in some cases allows you to get less tired when shooting for 12 hours straight. The very advanced customization allows you to sew the machine on your workflow, maximizing effectiveness. I talk more about my experience with the OM1.II on my website cicloreporter.com

Francesco Dissegna

sent on 09 Marzo 2024

Pros: Improved buffer, very precise intelligent autofocus. Even better stabilization. Rubber nuts are definitely more manoeuvrable! Really very useful gnd filter for landscapes and nd filter set to 128 to have an even silkier effect when photographing water in motion ! Hi-res works at 14-bit for professional color accuracy

Cons: I didn't find any cons at the moment

Opinion: The Om1 is and still remains a great camera, it always has that buffer problem (even if in reality the shots that use it thoroughly are not that many) it has some small indecision on autofocus tracking. The new OM1 mk II has eliminated these two problems that are of some importance for those who do birdlife and sports! Now you can be sure that you will always bring home the best! The system now has a good arrow in its bow!

Photos taken with OM System OM-1 II

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OM System OM-1 II : Specifications and Opinions

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Photos taken with OM System OM-1 II