Rodenstock 480mm

[eduardtoader]

A friend let me this lens to test it last weekend. I used it with a DYI plastic cone on 4x5 camera because I dont have a bigger format. The lens was heavy enough for my gear - I did´nt shoot anything but I saw the "very tele" effect on the focusing glass.

Someone could tell me about this lens? Coverage, shutters to mount, prices, anything could be usefull. I´m thinking to build a larger format camera. This lens could cover 8x10 or more?


Thank you all.

[Dan Fromm]

Use Google, then ask for help.

[Tim k]

This might help

http://www.largeformatphotography.info/lenses/LF11x14in.html

[Peter K]

This might help

http://www.largeformatphotography.info/lenses/LF11x14in.html
The image circle of 395mm at f/22 is too small for 11x14", 447mm, but has some room for movement with 8x10", 312mm.

[Steve Barber]

This might help:

http://www.prograf.ru/rodenstock/largeformat_en.html

It will not cover 11x14, but it is a good lens for 8x10. You give up speed and coverage for less bulk and weight. Do not worry about f9, because, as a process lens, it will not be as sharp as you want until you stop it down to f22 or less when you are focusing at infinity. It will go into a Copal #3 if you have a competent machinist, such as Adam Dau at S. K. Grimes, to fabricate the adapters that are necessary. The cost of a shutter and the machine work are not cheap, but you do end up with a good lens in that focal length if you start out with one that is clean and clear. Do not waste your effort on one that has scratches, chips or whatever because it will be deeply discounted if you ever decide to sell it and will never enjoy the same appreciation, if any, that an improving market might bring to a lens that has no issues with the glass.

Of course, you can keep the expense down to the cost of a lens board and a flange ring, which it appears to be missing, and use a hat or a cap for the shutter. That will keep the cost down and still provide a usable lens, just don't spend a lot for it if it is not good enough to consider the expense of mounting it in a shutter.

[eduardtoader]

http://www.largeformatphotography.info/lenses/LF8x10in.html

I read here that this lens have a 400mm image circle at f/22, but the lens specifications tell that this lens open from f/9 to f/90. I can close mine at f/250 - so, I´m thinking that is not the same - that from the 8x10 table and mine.

The guy told me that he could sell me the lens for 50 dollars if I like how it work. The forums saying that a Apo Ronar could be bought from 800 dollars to 2000. I´m shure that is not the same lens. This guy work large format photography ten years or more and he would´nt sell something expensive for a lot of money but he would ask a serious price for it.. The lens is not stoled.

He told me that this lens could be a enlarger lens. If it´s true, the specifications are another that a camera lens?

This is a reason that I´m writing here. I ask it to Mr Google but he is a little bit ambiguous.

Thank you all.

[Peter K]

I read here that this lens have a 400mm image circle at f/22, but the lens specifications tell that this lens open from f/9 to f/90. I can close mine at f/250 - so, I´m thinking that is not the same - that from the 8x10 table and mine.
It's the same lens but for pictural photography no smaller f-stop as f/90 should be used. f/250 is for graphic arts only.

f/22 is the working aperture, the image circle doesn't increase if the lens is further stopped down.

[Steve Barber]

http://www.largeformatphotography.info/lenses/LF8x10in.html

I read here that this lens have a 400mm image circle at f/22, but the lens specifications tell that this lens open from f/9 to f/90. I can close mine at f/250 - so, I´m thinking that is not the same - that from the 8x10 table and mine.

The guy told me that he could sell me the lens for 50 dollars if I like how it work.



As I said, it is a process lens. Here is another, the same as the lens you pictured, removed from its original barrel mount and mounted in a Copal #3 shutter with the lens caps that were made for it at the same time.

The other photo shows the elements with the machined adapters that allow them to be threaded into the shutter.

Really, fifty dollars or fifty euros, the price is not a problem.

[eduardtoader]

f/250 is for graphic arts only - what meen that?

Wich is the equivalent focal distance in 35mm of this lens? Can I use it as a wide angle on 10x12 inches - or in its maximum coverage size?
Finally, wich is the maximum coverage of this lens?

thank you all for help.

[eduardtoader]

Steve.

The lens mounted in your Copal is beautiful. Can you tell me who had do this work?

[Peter K]

f/250 is for graphic arts only - what meen that?
Because the reprographic technique (http://en.wikipedia.org/wiki/Halftone) is history today such precious lenses like the Apo Ronar are cheap today.

Wich is the equivalent focal distance in 35mm of this lens?
Depends on the neg size, for 24x36mm it's 480mm but for 8x10" its 70mm.

Can I use it as a wide angle on 10x12 inches - or in its maximum coverage size?
Finally, wich is the maximum coverage of this lens?
As mentioned before :rolleyes: the maximum image circle is 395mm so you can use it with 24 x 30 cm too.

Peter

[eduardtoader]

Lot of thanks, Peter.

I understand that in 24x30 cm this lens would be a normal lens - as a 150mm on 4x5"?

[Dan Fromm]

Unless I just made a bad arithmetic error, normal for 24x36 (24**2 + 30**2 = 1476, sqrt(1476) = 38.4) is 384 mm.

[Bob Salomon]

As a lens sold in the photographic marketplace the Apo Ronar, since we became the Rodenstock distributor in 88, was supplied in either Copal 3 or Prontor Professional 3 shutters and, since these shutters had too small an opening for the lens to reach f9 were restricted to f11 wide open and f90 stopped all the way down. However, since this lens is less then 600mm the lens was optimized for use at f22 only.

It covered a 396mm circle at f22 at infinity. Larger, of course, at closer ranges.
That means that on 810 it gave 59mm of rise and 50mm of shift in the landscape position.

As a process lens in NF mount the lens was rated at 1:1 to cover 18 x 24" film at f22. Again the smallest aperture was f90 although some older NF mounts might stop down smaller. But since the lens is designed for f22 you would be in diffraction at f90 or smaller apertures anyway.

[Steve Barber]

Steve.

The lens mounted in your Copal is beautiful. Can you tell me who had do this work?


Eduard,

The lens was mounted in the shutter at S. K. Grimes

http://www.skgrimes.com/