Are there any fast Dialyte ~10" lenses

[Ethan]

I wonder if you should be looking at photocopier lenses, I seem to recall taking apart a fast Fuji that was a dialyt.

Thanks for the suggestion, I'll keep my eye out for them, do you know of any in particular?

[Jody_S]

Thanks for the suggestion, I'll keep my eye out for them, do you know of any in particular?

I edited my post above to add the following:

Edit: I found the lens, 8 strong reflections, Fujinon-Xerox 260/5.6, no aperture, threading over entire barrel with 2 locking rings. Mine is in rather poor condition, but that probably wouldn't matter for your purposes. I obviously never took it apart to clean because it's filthy. They used to be pretty cheap on fleabay. Still are, I just found 2 for US$20 ea, and f4.5 though those might be Tessars.

[Ethan]

I edited my post above to add the following:

Edit: I found the lens, 8 strong reflections, Fujinon-Xerox 260/5.6, no aperture, threading over entire barrel with 2 locking rings. Mine is in rather poor condition, but that probably wouldn't matter for your purposes. I obviously never took it apart to clean because it's filthy. They used to be pretty cheap on fleabay. Still are, I just found 2 for US$20 ea, and f4.5 though those might be Tessars.

nice, any idea if its coated?

[edit: they appear to have a red dot, which usually means coated]

[Oslolens]

nice, any idea if its coated?

[edit: they appear to have a red dot, which usually means coated]

Mine was multicoated.

Sent fra min SM-G975F via Tapatalk

[Jody_S]

I have just opened the lens to have a look, it is not a dialyt, it's a 6/4 plasmat (not sure how I missed that faint reflection). Coated. Completely unsuitable for your purpose, unfortunately. I should have known just from the weight that it wasn't a dialyt.

[Bernice Loui]

Cooke Aviar.

UV transmission of lenses varies lots. Some lenses have been designed to suppress UV transmission, others less so.
Quartz is often used in optics specific to UV..
https://www.largeformatphotography.i...uarz-LF-lenses

There was another LFF discussion about common LF lenses and their ability to pass UV, not able to find it now.


Bernice

[Ethan]

I have just opened the lens to have a look, it is not a dialyt, it's a 6/4 plasmat (not sure how I missed that faint reflection). Coated. Completely unsuitable for your purpose, unfortunately. I should have known just from the weight that it wasn't a dialyt.

thanks for checking!

[Tin Can]

Cooke Aviar

https://www.flickr.com/photos/kansal...7623671927481/

[Mark Sampson]

You might ask forum member Nodda Duma about this. He is a lens designer, after all.

[Jason Greenberg Motamedi]

are you sure it wasn't a 6/4?

Yes, I took it apart and it was a 4/4.