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Fujifilm GFX 50R
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PostPosted: Tue Jan 07, 2020 10:33 pm    Post subject: Reply with quote
tb_a wrote:
...

I have a couple of these lenses (65, 100, 150 and 180 mm) and 2 G690 bodies. However, I don't know if it's really worth the effort to adapt these rather slow lenses to a modern digital camera.
BTW, there are ready adapters available for the usage of these Fujinons on Sony-E, Canon, etc. but not yet for the Fuji GFX.

What was your impression when you tested the lenses on digital? I'm still hesitating to buy an adapter for my Sony A7R II.


When i developed the adapter, i havent had one of these Canon Adapters, so in the first step i had only a Canon EF to FUJI Mount adapter, so i did use my Canon 5D MKII to measure all necessary things like perfect dimensions...

So the first part did look like this...



To find the perfect dimensions was needed, as you can see ... the prism part needs to be conical... like in the next picture..



As far as i know there is no adapter available for the G690 Lenses. You can find adapters for Canon on the GFX, Pentax etc... on GFX, but no adapters to bring these lenses for the Texas Leica to the GFX... thats was the reason, why my forum member did ask me to build one.

To your question regarding the lenses...

Yes, these lenses are good... nothing special in terms of "speed", but most of these old MF lenses are starting at max. speed of 2.8... see Hasselblad Sonnar 4/150mm or Zeiss Distagon 4/50mm.... all of them are great lenses. You cant compair these lenses with modern lenses but imho that is a question, everyone should find out, what he needs to be lucky.. paying 2.500 Bucks for a modern fuji GFX fit plastik lens, or these older formula for a 6x9" cam...

Most of them are for taking pictures in studio with flashlights or outside photography under good weather conditions.

As you can see in the pictures in my post, all are taken at open aperture and the scene from "Husum Port" was taken with the 65mm... and its tack sharp as you can see in the Center crop i did add.

These 65mm lens i did use also has a foggy element inside... and i was satisfied with the resolution...

Problem in my eyes ... the lenses are made of heavy weight metal... and the GFX with these lenses and the massive adapter is really heavy... no cam for a short walk in the park with the dog... Laugh 1

Regards
Henry


PostPosted: Tue Jan 07, 2020 11:00 pm    Post subject: Reply with quote
hinnerker wrote:


As you can see in the pictures in my post, all are taken at open aperture and the scene from "Husum Port" was taken with the 65mm... and its tack sharp as you can see in the Center crop i did add.

These 65mm lens i did use also has a foggy element inside... and i was satisfied with the resolution...

Problem in my eyes ... the lenses are made of heavy weight metal... and the GFX with these lenses and the massive adapter is really heavy... no cam for a short walk in the park with the dog... Laugh 1

Regards
Henry


Thanks, Henry.

I think it's not worth to spend up to EUR 200,- (incl. shipping and TAX) for the adapter to use these old Fujinon lenses on my A7R II. As you rightly explained, the size and weight isn't really attractive for outside shootings and I have a lot of other very good and also faster lenses already, most probably at least as good when stopped down to F5.6. The focal length from 65 to 180 mm isn't really extraordinary as well. For a digital medium format camera such as the Fuji GFX it may make more sense.

Regards,


PostPosted: Fri Feb 14, 2020 9:20 pm    Post subject: Reply with quote
Marshall J Vanderhoof reports about using Pentacon Six lenses on the Fuji GFX 50s. So far I understand for him the focal length of the Bm 80/2.8 fills a gap which isn't available for the Fuji and he uses the 180 and 300mm Sonnar to have cheap lenses for focal lengths not used as often and which would cost some $3000 when bought from Fuji.

Here (sorry, German only, but pictures will show when scrolling down...) a Flektogon 4/50 is used with a tilt/sift adapter on a Fuji GFX 50r.

All three things (non existent focal lengths, cheap lenses for rarely used focal lengths and tilt shift able lenses by larger image circles) would make reasonable sense for me to use "old" medium format lenses on a Fuji. Beside the reason of simply having fun using such old lenses.


PostPosted: Sat Feb 15, 2020 12:22 am    Post subject: Reply with quote
It just dawned on me, while giving a Foth 3,5 50mm a CLA, that lenses designed for the 127 film format should cover the sensor on the Fuji.
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