Just got a somewhat beat up 47mm XL today which I need to test to see if it is optically OK. Am I correct that I have to stop to f22 to get it to cover 4x5? At less than that do get vignetting, or just loss of image definition - I am thinking a sharp center and soft edges might be interesting on an ultra wide.
Any other tips? I have an Ebony 45SU and a bag bellows, so in theory I should be good on a flat board.
Ed Richards
http://www.epr-art.com
Ed, I primarily used mine as a 6x9 lens for which it is superb-with tons of movement.
Thanks,
Kirk
at age 73:
"The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep"
On 4x5 I am assuming it is the ultimate box camera - but I am hoping it will be the perfect lens for cathedral ceilings.
Ed Richards
http://www.epr-art.com
A few times, backed into a corner, I just stopped it down, used it on 4x5 on axis and just cropped it to whatever was usable. It saved my butt a few times.
Thanks,
Kirk
at age 73:
"The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep"
You don't have to use f22 - I used to shoot mine at f16 regularly. Try a test at f11 to see what you get (fine I think).Originally Posted by Ed Richards
Your camera will work better with a recessed board. The bellows will tie you up with a flat board, not that you'll be able to use much movement, but you will want what you can get.
Its an excellent lens.
> Your camera will work better with a recessed board
true, but my fat fingers do not.:-) i will report back on how the flat board works.
Ed Richards
http://www.epr-art.com
I found that a recessed panel was more useful with the 47XL on my Ebony 45SU - a flat panel does restrict the movement available; although you won't get much opportunity to employ movements on a sheet of 5x4 due to the coverage of this lens.
Paul and Henry,
Ebony does show a sense of humor in saying that this lens can be used with the 45Su with a flat panel. Just tried it this morning - I can just get it focused at infinity before the standards collide.:-)
Paul - were you using the bag bellows? Given the tiny amount of movement this lens will give, I am not sure the bag bellows will be a problem.
Henry - good tip. I just shot a series 8, 11, 16, and 22. That will give a good lens test as well as let me figure out what happens to the image circle.
Ed Richards
http://www.epr-art.com
Don't forget a center filter!
Fall off is not as bad as I expected, and I can see little difference between F8 and F22 - clearly the lens maker was being very conservative in rating the image circle. I did not shoot a blank wall, so the fall off just pushes the shadows to black, which confused me for a minute because it makes edges look less sharp.
If I shot color, the center filter would be a necessity. For black and white, I sort of like the look - saves edge burning.
Ed Richards
http://www.epr-art.com
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