Ricoh GR III, low light AF comparison

Started Mar 19, 2019 | Discussions
Daedalus2000
Daedalus2000 Veteran Member • Posts: 8,416
Ricoh GR III, low light AF comparison
2

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Ricoh GR III
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lemangin
lemangin Forum Member • Posts: 79
Re: Ricoh GR III, low light AF comparison

I found this one too, based on a japanese review about the autofocus. The guy mentioned that the batteries are quite easy to aim at because of the high contrast of the text, but in real life with lesser contrast, things get worth.

https://www.youtube.com/watch?v=59I6IQjJITE

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Ricoh GR III Fujifilm X100V Fujifilm X-Pro3 Ricoh GR IIIx +1 more
Ribbit74 Regular Member • Posts: 424
Re: Ricoh GR III, low light AF comparison

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Ugh. Manual focusing would be faster!

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Olympus OM-D E-M10 II Panasonic 20mm F1.7 II Olympus 12-40mm F2.8 Pro Olympus M.Zuiko Digital ED 40-150mm F4-5.6 R Panasonic Lumix G Vario 14-140mm F3.5-5.6 O.I.S +2 more
axlotl Senior Member • Posts: 2,237
Re: Ricoh GR III, low light AF comparison
1

lemangin wrote:

I found this one too, based on a japanese review about the autofocus. The guy mentioned that the batteries are quite easy to aim at because of the high contrast of the text, but in real life with lesser contrast, things get worth.

https://www.youtube.com/watch?v=59I6IQjJITE

Thanks for posting. It looks bad but note the light level.

1/8 sec, f2.8 ISO 4000

Judging by the back-and- forth lens movement the camera appears to revert to contrast detect AF only at these low light levels.

Andrew

dpcane Contributing Member • Posts: 814
Re: Ricoh GR III, low light AF comparison

Yikes. Is the gr clip from 2010?

ekaton Senior Member • Posts: 1,032
Re: Ricoh GR III, low light AF comparison
10

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Thanks for sharing. I thought I would order one  but will now wait for a FW upgrade which considerable improves AF. For an expensive camera released in 2019 this AF performance is not acceptable for me.

 ekaton's gear list:ekaton's gear list
Ricoh GR IIIx Sony a7R IV Sony a7C Leica Summilux-M 50mm f/1.4 ASPH Leica APO-Summicron-M 90mm f/2 ASPH +5 more
JC14 New Member • Posts: 18
Re: Ricoh GR III, low light AF comparison

ekaton wrote:

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Thanks for sharing. I thought I would order one but will now wait for a FW upgrade which considerable improves AF. For an expensive camera released in 2019 this AF performance is not acceptable for me.

Seems impossible to me that they will get low-light autofocus up to par with the other cameras in the video via a firmware update. The difference is really staggering.

I was ready to buy a GRIII, but am definitely holding off right now. So sad.

Dericali Regular Member • Posts: 285
Re: Ricoh GR III, low light AF comparison
4

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

If you're shooting at 1/8 sec, f2.8 ISO 4000, does it matter if it takes a little longer to find focus? clearly you're not shooting anything moving.

I also see it struggling when trying to focus lock on featureless areas, like the white wall at very low light, which isn't a huge surprise.

Would also like to see photos from this - accuracy versus time to find focus would also be an important consideration.

Brentliris Veteran Member • Posts: 4,194
Re: Ricoh GR III, low light AF comparison
3

Quite low light in these tests, it would be hard to capture street images at these speeds, unless it was static subjects there would be motion blur as they moved around even at 1/200 second.

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Reflections, understandings, discoveries and intimations..

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(unknown member) Veteran Member • Posts: 5,228
Re: Ricoh GR III, low light AF comparison
2

Early release jitters, still speculation in my books, give it several weeks with some real hands on af experiences in various shooting conditions.

pierred

https://www.flickr.com/photos/8450532@N04/

AccursedSpermaceti Contributing Member • Posts: 554
Bit of a let down ...
1

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

It's up against stiff competition there as Panasonics low light SAF acquisition speed is the best bar none and Olympus's is pretty good too.

However, it is pretty disappointing as it kind of negates the usefulness of the IBIS for social photography - I can set the shutter speed to 1/10 on my g9 and wait for a "still moment" and get great indoor, low light candid portraits. I was hoping to do something similar with the gr iii, but this does not look hopeful.

Will still get one eventually for base ISO performance and the lens quality, but half of the cameras appeal has taken a big hit based on this evidence for me.

With my gr ii, I haven't experienced this because the sensor performance and lack of IBIS made low light photography not worth the bother for me. I feel like with the new sensor and IBIS people will get really frustrated by this.

AccursedSpermaceti Contributing Member • Posts: 554
Re: Ricoh GR III, low light AF comparison
1

JC14 wrote:

ekaton wrote:

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Thanks for sharing. I thought I would order one but will now wait for a FW upgrade which considerable improves AF. For an expensive camera released in 2019 this AF performance is not acceptable for me.

Seems impossible to me that they will get low-light autofocus up to par with the other cameras in the video via a firmware update. The difference is really staggering.

I was ready to buy a GRIII, but am definitely holding off right now. So sad.

Keep in mind it is up against the gx85, that would beat out any other camera in that test as that (low light SAF acquisition speed) is Panasonic's wheelhouse.

I suspect Sony and Nikon mirrorless would have been very slow in that situation too.

To be honest, when I heard it had phase detect AF, I was nervous because with it's Pentax DNA, I could never see it working well

JC14 New Member • Posts: 18
Re: Ricoh GR III, low light AF comparison
2

Sion H wrote:

JC14 wrote:

ekaton wrote:

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Thanks for sharing. I thought I would order one but will now wait for a FW upgrade which considerable improves AF. For an expensive camera released in 2019 this AF performance is not acceptable for me.

Seems impossible to me that they will get low-light autofocus up to par with the other cameras in the video via a firmware update. The difference is really staggering.

I was ready to buy a GRIII, but am definitely holding off right now. So sad.

Keep in mind it is up against the gx85, that would beat out any other camera in that test as that (low light SAF acquisition speed) is Panasonic's wheelhouse.

I suspect Sony and Nikon mirrorless would have been very slow in that situation too.

To be honest, when I heard it had phase detect AF, I was nervous because with it's Pentax DNA, I could never see it working well

It's true that it might not be "fair" to have it compete against top of the line low-light-AF contenders, but I think everyone agrees that the current AF speed is way worse than what everyone expected and, in my opinion, may be expected from a camera in this price range and it's targeted intend of use.

Also Ricoh's claims of AF being significantly improved are embarrassing now.

"NEW - High-speed hybrid AF: Image plane phase-matching AF delivers high-speed AF and contrast-detection AF offers superb focusing precision. The best of these two types are combined to make a hybrid AF. The common issue of searching for focus peaks in contrast-detection AF has been significantly reduced on this model. The hybrid system delivers faster autofocus and greater precision."

Ouch.

dpcane Contributing Member • Posts: 814
Re: Ricoh GR III, low light AF comparison
5

Even if there were no other cameras in that test, it doesn't make it look any better.

MikePursey Forum Member • Posts: 62
Re: Ricoh GR III, low light AF comparison
1

As a long time Pentax user and comparing it with my DSLR's I have to say I thought the autofocus speed on the GRIII looked to be quite zippy actually.

I have to say Ricoh/Pentax never fail to amaze me. 

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JL Auch Regular Member • Posts: 243
Re: Ricoh GR III, low light AF comparison
1

This autofocus performance is terrible. It looks about the same as the GRI/II. I'd say my original OM-D EM-5 released back in 2012 (!!!) has better performance than this.

John Gellings
John Gellings Veteran Member • Posts: 8,722
Re: Ricoh GR III, low light AF comparison

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=

thank you... that’s pretty bad

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Ricoh GR III Ricoh GR IIIx Fujifilm GFX 50R Fujifilm X-Pro3 Fujifilm X-E4 +7 more
Daedalus2000
OP Daedalus2000 Veteran Member • Posts: 8,416
Re: Ricoh GR III, low light AF comparison
1

ekaton wrote:

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Thanks for sharing. I thought I would order one but will now wait for a FW upgrade which considerable improves AF. For an expensive camera released in 2019 this AF performance is not acceptable for me.

Yes, me too if that is possible. I am very disappointed with the AF and with the feedback from some of the early adopters. But I am not giving up, I will wait for more information and I will try to get one in my hands to try.

ripleysbaby Senior Member • Posts: 1,126
Re: Ricoh GR III, low light AF comparison
5

Just in case any GR landscapers out there. Just took delivery of the filter adapter.  I screwed a 10 stop nd on the end and it’s a nice clear view and it also focuses through it. Not blindingly fast but it does.

Weather is sunny but not overly bright at the time of testing .  Also the 10 stop is made by Pig Iron , £10-99 and in my opinion is better than my lee big stopper.

tinetz
tinetz Regular Member • Posts: 199
Re: Ricoh GR III, low light AF comparison
2

Daedalus2000 wrote:

As I was looking to upgrade my GR to GRIII, I saw this video that compares the GR III af to that of two other cameras... Worth seeing, sorry if it has been posted before

https://www.youtube.com/watch?v=B49A3TvejCk

Okay, on first sight this looks weird and it can not be called super fast focussing. But there are some things that have to be considered:

  • the tests I've seen show that the GRIII AF is faster than GRII
  • the Olympus and the Panasonic are considered the absolute best in it's class in AF
  • the light/EV is very low
  • m43 with f3.5 makes a difference to APS-C with 2.8

To be precise:

the APS-C has e.g. at 3m only half the DOF of the m4/3.

m4/3

Subject distance 1 m Depth of field Near limit 0.8 m Far limit 1.34 m Total 0.54 m
Subject distance 3 m Depth of field Near limit 1.7 m Far limit 13 m Total 11.3 m

APS-C

Subject distance 1 m Depth of field Near limit 0.85 m Far limit 1.21 m Total 0.35 m
Subject distance 3 m Depth of field Near limit 1.97 m Far limit 6.26 m Total 4.29 m

Would be interesting to see a FF 1.4 in comparison. And not only time to focus, but precision of focussed point. I really don't know what the result would be, but I would be curious.

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Ricoh GR II Pentax Q Nikon D810 Olympus Air Pentax KP +5 more
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