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Super wide on GXR

M

Mugent

New Member
I don't own a GXR but am intrigued by it, the only thing that would concern be is the lack of a super wide lens, 28mm isn't really wide enough for me.
I know some users have been testing wide angle conversion lenses, but the results aren't great, has anyone tried other adaptors, or is super wide on the GXR just not an option at the moment?

I actually have a Raynox wide adapter, but no GXR to test it with :-(

Cheers

MT
 
I frequently use the Ricoh DW-6 adapter on my A12 28mm lensor. I already had the DW for my GX100 but with a 40.5 to 43mm step-up ring it works very well on the GXR.

To me the quality is quite good. I would agree that a dedicated super wide would give better results. But with the DW-6 I get 22mm (0.79 x 28mm) and that is a nice wide for city architecture and the like.

The S10 goes to 24mm by itself and there is an extension tube to mount the DW-6 then you get to 19mm. However the image quality of the S10 is of course no where near the A12 units (given the small sensor compared to the APS-C sized sensor in the A12 units).

Remko
 
I wonder if there won't be a M mount lens with super wide? I am not familiar with what is available nor do I know what crop factor to use when looking at M lens availability. Any help apprciated.
Peter
 
Hi Mugent and welcome here! To finish the circle, here is my quick test of the wide/tele conversion lenses attached to the A12 28mm:
viewtopic.php?f=60&t=5578

Unfortunately, the results are nowhere as good as if the same lenses are attached to GRD/GX/GXR S10 cameras.
 
Mainiac":18uuo6s4 said:
I wonder if there won't be a M mount lens with super wide? I am not familiar with what is available nor do I know what crop factor to use when looking at M lens availability. Any help apprciated.
Peter
Click to expand...
Hi Peter,

Yes, there are some nice and relative inexpensive wide Voigtlander lenses (12mm and 15mm) for the M mount. There are only two problems with them. You need to multiply their actual focal length by the factor of 1.5 (given by the APSC crop factor). And the second problem is that the fastest aperture you should expect is f4.5 for 15mm and f5.6 for 12mm lens.
 
Thanks Pavel for your reply, the high minimum f stop will not deter me. Then the next question is there a 400mm or thereabouts lens that will work?
Peter
 
I really doubt there is a 400mm lens made directly for the M mount. As far as I know, the maximum tele lens made for rangefinders is 135mm? But you may find some other lenses made for other systems and that may be attached via "something-to-M" adapter? But I guess it would look rather silly when attached on small GXR body? ;)
 
Silly I am sure! :oops: So who makes the 100 to 135 m mount lens? ( I will give up dreams of a photo of the Great Blue Heron who alights on the local mud flats at low tide.)
 
there are 400 and even 560mm telyt lenses (Visoflex).
but using a Visoflex lens with the GXR is...hm...I can't find a word to describe the idea :)
 
There may be not the 400mm rangefinder lenses, but I'm sure there could be found some legacy 300mm lenses made by Olympus/Nikon/Canon/Sigma/etc... that could be mounted on the M-mount via an adapter? Because there is no rangefinder coupling, these lenses should work just fine on the GXR M-mount like on any other mirrorless system. It would just look a bit silly ;)
 
I wonder if any UK based user (or EU maybe) would be interested in a loan of my Raynox 0.66x converter (58mm thread) to test with the 28mm lens?

I could send it out, you could do a few tests and send it back? I'd prefer to keep it in the UK, but if no one is available, inside the EU would be OK too.

If anyone is interested, let me know.

Cheers

Moray
 
Moray,

you might want to contact Peter Watson in the UK who did a lot of converter experiments with his P10. I d not know whether he owns an A12-28, though.
Peter contacted me by e-mail in response to my pages, and I published some of his results:
http://www.waloszek.de/gxr_conv_e.php#pw

I might send you his e-mail address in a personal message.

However, I am fairly convinced that he is a registered user of this forum and calls himself senatorduck (and greets with Peter). So you can contact him directly through this forum. He posted some of his results for the P10 in this forum:
viewtopic.php?f=60&t=5483&start=10#p29021

Best regards, Gerd
 
odklizec":j6a1eekq said:
Moray,

I don't want to disappoint you, but even without trying the Raynox on A12 28mm, I seriously doubt it will be any good. Look for example at this test:
http://www.cs.mtu.edu/~shene/DigiCam/Us ... Short.html

What you should look for is something like Olympus WCON-07.
Click to expand...

A useful comparison, the Oly is clearly better than the Raynox, I dont mind forking out if it'll do the job, Im just a big fan of very wide lenses, and 28mm isn't quite enough, I'm looking for any option really, maybe the M mount with 12/15mm will be the way to go, expensive though.

Cheers

Moray
 
Mugent":3btxbox2 said:
Im just a big fan of very wide lenses, and 28mm isn't quite enough, I'm looking for any option really, maybe the M mount with 12/15mm will be the way to go, expensive though.
Click to expand...

Hi Moray,

What focal length are you looking for? (in full frame equivalent I mean).

And what type of subject are you looking for to shoot with it?

Given modern tech I'm also using stitching software to combine different photos in case my widest lens doesn't cover the subject by itself. Needs to be stationary of course.

Remko
 
Remko":3dly55s8 said:
Mugent":3dly55s8 said:
Im just a big fan of very wide lenses, and 28mm isn't quite enough, I'm looking for any option really, maybe the M mount with 12/15mm will be the way to go, expensive though.
Click to expand...

Hi Moray,

What focal length are you looking for? (in full frame equivalent I mean).

And what type of subject are you looking for to shoot with it?

Given modern tech I'm also using stitching software to combine different photos in case my widest lens doesn't cover the subject by itself. Needs to be stationary of course.

Remko
Click to expand...

I suppose 21mm or under would be nice, I have the Sigma 10-20mm for my APS-C SLR, so something like that would be great. I just like the superwide look, the extreme DOF etc...
Ideally the GXR would replace my DSLR, it's a nice camera, but the SLR plus lenses are a pain to lug around everywhere.

Cheers

Moray
 
Hi Moray,

Zeiss has a 15 mm (https://photo-shop.zeiss.com/epages/cz. ... jektive/ZM), but this one is expen$ive (€3600 :eek: )

Voigtlander 12mm (http://www.cameraquest.com/voigtlenchart.htm)

Alternative is to look at lens adapters for m-mount. But to be honest I'm not sure if it will be worth the effort. Might be easier and cheaper to look at micro 4/3rds (Olympus PEN or Panasonic G-series) there's a nice 7 to something (x 2 for 35mm equiv so starting at 14mm zoom) for m4/3.

Or wait to see what developments Ricoh/Pentax has in stock going forward.

Remko
 
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