dacruzphoto
New member
I'm looking for a 270mm lens for my 8x10 camera.
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Ok, thank you for the advice.You might try a WTB ad in the Buy/Sell section for better exposure.![]()
The Schneider Kreuznach G Claron 270mm is the lens he's looking for. Unfortunately they didn't make a lot of them and they don't come up for sale often because they are such an ideal lens for an 8X10 field camera.There are 240mm and 250mm lenses that will cover 8x10. I do not know of a 270mm that will cover that has been made.
The 270 Computar has even larger coverage than the G-Claron when stopped way down, but tends to be much harder to find and more expensive.The Schneider Kreuznach G Claron 270mm is the lens he's looking for. Unfortunately they didn't make a lot of them and they don't come up for sale often because they are such an ideal lens for an 8X10 field camera.
I said they were popular. Not ideal.The 270mm G-Claron will cover, but not much movement(IC 335mm) you need about 305 to cover the film. The Kowa and Computer offerings seem to be 4 element Tessar variations and would also probably have limited image circles. The G-Clarons were designed for close work and as such large enlargement did not often fare so well as the diffraction and best focus distance range was not conducive if large prints are the goal.
I've used the 270 G-Claron extensively on 8x10 and have used the 270 Computar on 11x14. Both of these lenses continue gaining useful image circle when stopped down past f/22. At f/45, the G-Claron provides ample room for movement on 8x10, while the Computar covers 11x14. Whether they provide sufficient quality for "large enlargement" is in the eye of the beholder. Many people working with 8x10 or larger these days are contact printing, either in silver or in alt processes, or scanning for hybrid processes. Regardless, if one has very particular requirements in this respect there is no alternative but to run one's own comparative tests on whatever lenses are under consideration. But the 240 and longer G-Clarons are widely used for 8x10.The 270mm G-Claron will cover, but not much movement(IC 335mm) you need about 305 to cover the film. The Kowa and Computer offerings seem to be 4 element Tessar variations and would also probably have limited image circles. The G-Clarons were designed for close work and as such large enlargement did not often fare so well as the diffraction and best focus distance range was not conducive if large prints are the goal....
Congo was another brand name that was similar to the Computar offerings.
I'm looking for a 270mm lens for my 8x10 camera.