Home

Please support mflenses.com if you need any graphic related work order it from us, click on above banner to order!

SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

Fujica FX adapters for Fujinon lenses Sony NEX and Micro 4/3
View previous topic :: View next topic  


PostPosted: Fri Jun 24, 2011 11:24 am    Post subject: Fujica FX adapters for Fujinon lenses Sony NEX and Micro 4/3 Reply with quote

Only recently adapters have become available to fit Fujinon lenses with FX mount, built between 1980 and 1985, to Sony NEX and Micro 4/3 digital cameras. I'm still waiting for Canon EOS adapters to become available.

There were some newly designed FX Fujinons like the 1.2 / 50mm, the 1.6 / 50mm, the 1.6 / 55mm or the 3.5 / 28mm, while the EBC lens coating was modified for some lenses, whereas it was retained for other focal lengths.

It would be nice if some users would share their experiences and sample shots taken digitally with FX lenses.


PostPosted: Fri Jun 24, 2011 2:30 pm    Post subject: Reply with quote

I am afraid that the wait could be very long...the registration of Fujica X cameras are shorter than most SLR's, including Canon EOS. So infinity focus would be a problem for adapters without optical compensation. Lens mount change may be a solution, the cost would be a serious consideration though.


PostPosted: Fri Jun 24, 2011 5:37 pm    Post subject: Reply with quote

I did buy an X-Fujinon 50mm f1.9 for the cheap lens challenge. I made my own adaptor to 4/3 for it. I did some basic test shots here and here and it seemed a very nice lens.

Realistically, the only DSLR that these lenses could be used with (and give infinity focus without an extra lens) is 4/3. It was quite a tight fit to get infinity focus on 4/3.

Just today I received a 50mm f1.6 EBC that looks in very nice condition (came with an AX-5 camera). I shall do some tests and report back.

I did not realise adaptors were available for m4/3. I shall have to look out for one of those.

Do you have any X-Fujinon lens that you particularly recommend or like? Having made the adaptor, I am willing to experiment.

Mark


PostPosted: Fri Jun 24, 2011 11:56 pm    Post subject: Reply with quote

Thanks, cambug and SXR_Mark, for your ideas and sample pics.

At http://en.wikipedia.org/wiki/Flange_focal_distance, the FFD for Fujinon FX lenses is reported to be 43.50 mm, that's identical to Minolta MD lenses, whereas the Canon EF mount has a FFD of 44.0 mm. I wouldn't mind if infinity focussing wouldn't be possible as long as the maximum focussing distance is within reasonable dimensions, say up to ten or twenty meters. An extra lens element within the adapter would of course ruin the optical quality.

It is a good idea to try and see if one might exchang the FX mount against another mount. The FX lenses are not expensive to obtain and the plastic barrel might ease the job for a dilettante like myself.

I held an EBC Fujinon 1.6 / 50mm against the mount of my Canon EOS 500D for a close-up shot of a spray of flowers, and I felt that the tonal gradation is excellent, that is to say, even better than with an EBC Fujinon M42 lens that may tend to over-expose the lights in high-contrast subjects. Its sharpness is greater than for the 1.9 / 50mm lens, and that is a very sharp lens, isn't it?

All 50mm and 55mm FX lenses were newly designed and have exceptional coatings. Those are lenses manufactured exclusively by Fuji in their own glass foundry in Odawara and not OEM lenses produced by third parties. The 1.6 / 55mm is peculiar because of its long tube. The 1.2 is excellent. Little known outside Japan, Fuji built the first Japanese 1.2 / 50mm lens in November 1954. Other specialties are the short 135mm and 100mm lenses as well as the impressive 200mm.

It would be good to exchange ideas about ways to use these excellent lenses in digital photography.


PostPosted: Sat Jun 25, 2011 12:05 am    Post subject: Reply with quote

That is valuable info Fujinonuser. Especially about the source of 1.2/50mm. There were rumors it's Cosina / PORST REFLEX copy, but you gave an alternative.

It is my wish for a while to adapt the above and 1.6/55mm to EOS. Nevertheless my F1.2 copies are so good looking i am afraid to work on them Smile.


PostPosted: Sat Jun 25, 2011 1:03 pm    Post subject: Reply with quote

Fujinonuser wrote:
I wouldn't mind if infinity focussing wouldn't be possible as long as the maximum focussing distance is within reasonable dimensions, say up to ten or twenty meters.


This chart shows why this is going to be very difficult to achieve. For a lens in which focusing moves all the optical elements together, it is easy to calculate how much the maximum focus distance will change. The x-axis is how much the lens is mounted beyond its nominal register. The y-axis is where the maximum focus distance will be. I have plotted for focal lengths of 50, 100 and 200 mm.



Even if you mount the X-Fujinon lens against the EOS flange, you still have the lens mounted 0.5 mm above its nominal register. With a 50mm lens, this means the maximum focus distance will only be about 5m.

Supposing the Fuji-X bayonet would fit inside the throat of the EOS camera and the adapter could be made only 0.5mm thick, then the lens is 1mm beyond its nominal register. The 50mm lens will focus only out to 2.5 m.

The situation is better with longer focal length lenses. In the above scenario, a 200mm lens would focus to 40m. You could make the adapter 1.5mm thick and still reach 20m with a 200mm lens

In practice, it should be possible to adjust the lens internally so that it focuses beyond infinity when correctly mounted. But I doubt this will amount to more than a fraction of a mm and so it will help but not solve the problem.

Note, if the distance between the lens elements changes during focusing (eg the lens uses internal focusing), this chart will not give the correct maximum focus.

Mark


PostPosted: Sun Jun 26, 2011 4:00 pm    Post subject: Reply with quote

Thanks to Mark for his interesting graphical representation of focusing distance against the change in registration. Apart from the optical consideration, the mechanical aspect of the picture taking operation inside the camera can also cause problem. The major one would be the clearance of mirror movement, this is also the reason why some dedicated manual focus lens users would grind their digital EOS cameras ( mainly full frame ) mirror to achieve necessary clearance. Whether it is worthwhile to do it is a matter of individual choice. Have fun on this anyway...


PostPosted: Sun Jun 26, 2011 4:45 pm    Post subject: Reply with quote

Thank you, Mark, for this interesting chart. I was afraid that the optical laws involved would lead to those results that are clearly visible in your chart.

We can be happy, then, that there is the possibility at least to use FX Fujinon lenses on Sony NEX and Micro 4/3 DSLR cameras. I wonder, though, if the peculiar optical qualities of the Fujinons will be retained. I not only look for sharpness and flatness of field in a lens, but also for the color transmission and color gradation. I never got to like some high-priced lenses because their green colors looked unnatural (too light) for me.

I was not very impressed by the few sample pictures from Fujinons taken with a Sony Nex camera that have been uploaded to the WWW, although Mark's samples from the 1.9 / 50mm are truly impressive. I wonder if there are great differences in the color interpretation between a Canon EOS and an Olympus DSLR or if those can be overridden by Picture Styles in PP.

As to the 1.2 / 50mm Fujinon lens: this information comes from the Japanese history of Fuji company that can be found at the Japanese Fuji website. New lanthan glasses were used for that 1.2 / 50mm lens and it seems quite likely that the early non-EBC 1.4 / 50mm lens was derived from that formula. Other Fuji specialties of the early 1950s was a 1.9 / 35mm and a short-barrelled 3.5 / 135mm tele lens. I have that 135mm lens and I like it very much because of its sharpness even at 3.5 and its unsurpassed color rendition.

I like this discussion and thank you for your contributions.


PostPosted: Mon Oct 08, 2012 12:17 am    Post subject: Re: Fujica FX adapters for Fujinon lenses Sony NEX and Micro Reply with quote

Fujinonuser wrote:
Only recently adapters have become available to fit Fujinon lenses with FX mount, built between 1980 and 1985, to Sony NEX and Micro 4/3 digital cameras. .........


Please tell me where to find these adapters I have been looking for one for my Panasonic G1 so i can use a lens with an F/AX mount.


PostPosted: Mon Oct 08, 2012 6:03 am    Post subject: Reply with quote

Hi every one,

I'm still struggling on the fact to modify Fujinon X lenses. I just did the same adaptation on a Tokura 28mm in Minolta MC, the mounting ring was thick enough so that I can reduce it 2 millimeters and add a M42 to Pentax K adapter, to fit to my K5. The results are quite encouraging.
That is true that Fujinon X are cheap, we can get 50mm 1.9 or 1.6 for 10 to 15 Euros. Does someone know if the mounting rings of those two are thick enough to be reduced?

Jean Claude


PostPosted: Mon Oct 08, 2012 2:59 pm    Post subject: Reply with quote

I have X-Fujinons 2.2/55, 1.6/50, 1.6/55, 1.9/50.

Honestly, not worth the hassle of conversion. The 1.6/50 is crap on digital, soft wide open and with the worst CA I've ever seen from a 50mm lens. The 1.6/55 is a little better, but I found all four to be inferior on my NEX,


PostPosted: Tue Oct 09, 2012 7:50 am    Post subject: Reply with quote

I think you gave up on Fujica-X system to easily Ian. I quite liked those:
http://forum.mflenses.com/x-fujinon-50mm-1-6-fujica-x-to-eos-t27649.html
http://forum.mflenses.com/fujinon-x-55mm-1-6-t41692.html
http://www.flickr.com/photos/dull_life/sets/72157628253180585/detail


PostPosted: Tue Oct 09, 2012 8:13 am    Post subject: Reply with quote

Pancolart wrote:
I think you gave up on Fujica-X system to easily Ian. I quite liked those:
http://forum.mflenses.com/x-fujinon-50mm-1-6-fujica-x-to-eos-t27649.html
http://forum.mflenses.com/fujinon-x-55mm-1-6-t41692.html
http://www.flickr.com/photos/dull_life/sets/72157628253180585/detail


On a film camera I found nothing special using my Fujinon lenses 50mm f1.9, 100mm f2.8 and M42 135mm and 200mmm...they are nice lenses but there is no "magic" that makes me want to use them instead of my other lenses. So if I ever get a digital camera I wont bother to convert my Fuji lenses.