75mm lens for 5x7?

[Ramiro Elena]

I recently made me a box camera around a 5x7 back and a Schneider Super Angulon 75mm f5,6. I knew it would clip the corners or be soft but I wanted to give it a try anyway.

I am now thinking it would be nice to have another 75mm with a larger CI. I don't mind dark corners but I seem to be getting dark edges which I don't quite like.



A vintage shutterless lens would work just fine. I am stopping down to f45 anyway. It would have to be 75mm since I am not willing to mod the box. Any ideas for such a lens?

[Roger Hesketh]

Their does not seem to be much choice at 75 mm. A Nikkor 75mm SW has an image circle of 200mm diameter as opposed to your SA's of 198mm. The diagonal of 5x7 is 208mm.

One thing you might consider is changing your film holder and film size. 13cmx18cm is slightly bigger one way and smaller the other. The aspect is slightly different so that might help. Half plate film is also still available. The film size is not that much smaller being 6.5" x 4.75" and your 75mm SA will cover that nicely. The holders have the same external dimensions as 5x7 ones and are 150mm wide. A figure derived from the Gandolfi size for Half plate film holders.

The holders will fit your camera back.

I just had a quick look and found these http://www.ebay.co.uk/itm/Dark-Slide...item258a6400c0

I have no connection with the seller.

When you buy a 5x7 camera. You are buying a multi format camera as it is capable for use with 5x7, 13x18 and Half plate without modification. Similarly 4x5 and 9x12 holders also have the same external dimensions.

[Ramiro Elena]

That sounds like a very good idea and I like the aspect ratio better. Not sure if finding film will be any easy or economic.

[Roger Hesketh]

An inexpensive source for half plate film. http://www.lumiere-shop.de/index.php...duct&info=1670

Also available on Ilfords ULF and Unusual sizes run. http://www.ag-photographic.co.uk/hp5...-25-2923-p.asp

Ouch!!!

[Andrew Plume]

great work, again, Ramiro

from my knowledge, vintage shutterless barrel lenses do not appear in the 75mm fl

Roger has come up with exactly what I was intending to suggest, reduce the size to say 5 x 6 or 5 x 6 1/2, in that way you can still use the same set up, and crop the neg. After all (and as I've said on here before), one Paul Strand modified his 5 x 7 Graflex to 5 x 6 although he wasn't shooting as wide as this

regards

andrew

[vinny]

72mm sa xl

[Professional]

Yes, 72mm has greater IC than 75mm and it is vert slightly wider, that is why i bought 72mm first place, just i have to find a lens on the other side, LONG, not sure if it should be 240/250 or 300 or 210.

I feel if i got used to 4x5 in the future then should i try 5x7 or go direct to 8x10?

[RawheaD]

Yeah, 72XL and recess the lens by 3mm somehow?

The specs for Nikkor SW 75 @ 200mm seems to be at F16 so you might actually get a bit bigger stopped down further.

[8x10 user]

The grandagon N 4.5 has a slightly larger image circle then the 75mm SA, also there is less light falloff due to "pupil distortion". The 72XL of course has even more coverage but you might need a center filter.

[Ramiro Elena]

The 72mm would be a nice solution but I am not willing to spend that much cash. I am shooting the the 75mm at f45 and still get a pronounced fall off. I can live with the dark corners, it's a few millimeters anyway. The fall off makes the sides very dense.
I think I will go with the half plate solution.
I'll report back with images when I get the parts.