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- Edward Bray
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After my failed attempt to get a full shot of Venford Dam spilling during the summer (see here) I revisited Venford again yesterday to try to take the image I had originally planned.
A couple of things were different though, this was my first image with my very recently purchased Canham MQC 5x7 Metal field camera and I also wanted to see how much vignetting I would get with the use of my 75mm f5.6 Super Angulon on 5x7 format (this lens is not designed for 5x7). Schneider give the image circle as 198mm @ f22 where the recommended minimum for 5x7 is purportedly 212mm, although I did use f32 to tweak the last bit of coverage available out of this lens and was pleased to discover that only the very outer corners were affected and then not by much. I suspect had I thought to use my IIIb centre filter the results would have been even better.
75mm is very wide on 5x7 (to give an example using 35mm as a reference, you divide the focal length by 4.5 which gives approximately 16.5mm), the widest lens available designed for the 5x7 format is a 72mm SA XL.
Film was Adox 25 developed in my first ever batch of Pyrocat HD (looks like I made it up okay).
As for at the waters edge, any closer and I would have had wet feet.
Venford Dam 5x7 75mm SA by Ed Bray, on Flickr
A couple of things were different though, this was my first image with my very recently purchased Canham MQC 5x7 Metal field camera and I also wanted to see how much vignetting I would get with the use of my 75mm f5.6 Super Angulon on 5x7 format (this lens is not designed for 5x7). Schneider give the image circle as 198mm @ f22 where the recommended minimum for 5x7 is purportedly 212mm, although I did use f32 to tweak the last bit of coverage available out of this lens and was pleased to discover that only the very outer corners were affected and then not by much. I suspect had I thought to use my IIIb centre filter the results would have been even better.
75mm is very wide on 5x7 (to give an example using 35mm as a reference, you divide the focal length by 4.5 which gives approximately 16.5mm), the widest lens available designed for the 5x7 format is a 72mm SA XL.
Film was Adox 25 developed in my first ever batch of Pyrocat HD (looks like I made it up okay).
As for at the waters edge, any closer and I would have had wet feet.
Venford Dam 5x7 75mm SA by Ed Bray, on Flickr
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