Lenses with built in shutter in 30-55mm focal length

[Ash]

Hi All,

I am itching to construct my own 24x72 format panoramic camera and was wondering if anyone know if lenses with built in shutter in 30-55mm focal length range which can cover the mentioned format. I know about mamiya universal press fit 50mm. May be something on the same lines. Cheaper the better

[Nesster]

You might take a look at 127 or 828 cameras to salvage the lens/shutter from.

[iangreenhalgh1]

Any lens from a 6x9 folder will do, usually these are 10.5cm focal length. Good ones are the Tessar, Schneider Radionar, Ross Xpress, there are plenty of others.

Soft corners is often an issue with old folder lenses, but as they thrown a roughly 10cm circle and you are only going to use 7.2cm of that circle, the soft corners shouldn't be a problem for you.

[Ash]

[Ash]

[Nesster]

They may or may not give coverage:
40x28mm is 828 frame size
127 is 4 cm by 4 or 6 cm so maybe a bit more applicable
and 135 of course is 36x24mm; I'd forgot about the 35mm folders for the moment.

127 may be your best bet, I don't know the actual coverage of these lenses.

6x6 120 folders typically have a ~75mm lens

[Nesster]

[Nesster]

Another couple of ideas: wide angles for Graflexes:
http://nelsonfoto.com/SMF/index.php?topic=11117.0
or modify one of the press rangefinder cameras, or even the Mamiya TLR wide angle to suit...

[iangreenhalgh1]

I can send you a Nagel Anastigmat f6.3 10.5cm in a working Gauthier shutter to get you going, it's from a Nagel 6x9 folder so it will cover the size you need.

To get something wider a Mamiya TLR lens will be cheapest, I saw a 55mm go for under 20ukp on ebay recently.

[Scheimpflug]

[Ash]

[Ash]

[Ash]

[pdccameras]

You may be able to find a 50mm enlarging lens with an adequate image circle that threads directly into a 00 or 0 sized shutter. The shutters can be found on a variety of folding cameras.

P.

[luisalegria]

This is what you really want -

http://www.ebay.com/itm/Schneider-super-angulon-S-f5-6-47MM-wide-angle-lens-/300588364796?pt=Camera_Lenses&hash=item45fc7673fc

[iangreenhalgh1]

Yes, the Angulon is wonderful, sadly not cheap!

[pdccameras]

[Ash]

[Ash]

[pdccameras]

[Ash]

[Scheimpflug]

[Ash]

[luisalegria]

50mm enlarger lenses are generally simple Tessars or even triplets.
They have the same coverage as taking lenses of the same focal length, it is inherent in their designs.

Folder lenses that would certainly cover this format would be of a much longer focal length - 105mm from a 6x9 for instance.

You could, maybe, use a 75mm-85mm lens from 6x6 camera. Since you are using just the center strip of the coverage circle these may do 24x72, if not they should come close.

There often are 75-85mm lenses in shutter available in ebay taken from these 6x6 folders or TLR's. You could even buy a cheap TLR, like the Ciroflex/Graflex with Wollensak lenses in Alphax or Rapax shutters. These are OK lenses in very good shutters, especially the Rapax. With luck you should be able to find one under $20.

Another option is the relatively scarce Ilex, Wollensak or Leitmeyr 65mm wide angle lenses. These were made for 6x9 or 3 1/4x4 1/4" formats I believe. There is also a Schneider Angulon 65mm.

[luisalegria]

If you mount any of the usual small shutters behind this lens I think you will be cutting off a great deal of coverage. I suggest you construct a test rig and check your image circle before you spring for a shutter.

Mount the lens on something where it can project an image circle at infinity; maybe using a sanded acrylic or wax paper "groundglass". Make a series of tubes about the right size, and mount them behind your lens with whatever spacing seems right. See if you get your coverage, and find the smallest hole size that works.

You may need a rather large shutter.

These are some common Ilex shutters specifications - Ilex made some large sizes

http://www.skgrimes.com/library/used-obsolete-discontinued-shutters/ilex