eli griggs
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One proposed advantage is that it would reverse the vignetting effect.I use enlarging lenses to take pictures but wouldn't use camera lenses for enlarging. I see no advantages in doing so.
One proposed advantage is that it would reverse the vignetting effect.
not as good as a enlarging lens like a Rodagon 80mm
It is not often mentioned but enlarging lenses can be used to great effect as Macro lenses when mounted on a set of bellows.
Of course, enlarging lenses do an excellent specialized job, other things may also work, more or less...
IIRC some LF macro lens is just an enlarger lens reversed, with a different stamp and in shutter...
Anyway when we are considering to use a non macro lens for macro we may want to check bokeh. In macro (if not a flat thing) we usually have a background and part of the subject in the Out Of Focus, so we may want an smooth (or not) bokeh. Background depiction may not be a problem beacuse it can be too blurred to show the bokeh nature, and also we may place a blank sheet for the background... but the focus roll-off in the subject can be interesting, there are many nuances in that.
One proposed advantage is that it would reverse the vignetting effect.
How? I have never anything so daft!
I cannot see the point of reversing an L/F enlarger lens to use as a macro lens,
I cannot see the point of reversing an L/F enlarger lens to use as a macro lens, an enlarger lens would make a very good macro lens anyway the right way around
Vignetting on the negative is caused by light fall-off near the corners of the frame. The same fall-off (due to lens limitations, not to distance variation as with a very wide pinhole camera) will lighten the print, opposite of the effect of printing the lighter (due to less exposure) corners of the vignetted negative.
The correction won't be perfect (because the lens is further from the film in the enlarger due to focusing much closer), but there is some tendency to at least limit the "dark corners" effect when the same lens is used to enlarge as to expose the negative.
For example to cover 8x10" negatives with a 150mm lens, at 1:3, this is projection on film being triple size than the real object, that could be an ancient document, art or an scientific/technical flat issue.
Depending on the magnification, the lens has to be reversed for optimal yield.
A lens working well for (say) 1:4 to 1:10 will also work well from 4:1 to 10:1 when reversed, but it would not work well from 4:1 to 1:4
But for 4:1 you may use a shorter focal than would be used to enlarge that format. For example at 4:1 (or 5:1) the Nikon EL 50mm covers 8x10", in that case you reverse the lens... to take advantage of the lens optimizations that allow to work well at x4 enlarging work, (a shot at 4:1 macro expands 1 mm on the subject to 4mm on the film...)
For 1:2 or 2:1 we may use lenses that are optimal in that range, like the older Rodagon R (reproduction) and the newer Rodagon D (duplication). Of the D even we have the x1 and the x2 models... The x2 should to be reversed depending on the magnification. Those lenses are very bad for other ranges like x6 enlargement, but they are very superior when approaching 1:1 compared to regular enlarger lenses.
Absolute nonsense! An enlarger lens is already set up for working at close distances. Reversing it will only make it less effective.
I believe the vignetting comments were in respect to camera lenses used on enlargers, not to enlarging lenses themselves.Absolute nonsense! An enlarger lens is already set up for working at close distances. Reversing it will only make it less effective. Pretty much the same as using a normal camera lens for Macro work without reversing it. (Walks away shaking my head|)
Seems like a solution looking for a problem.
Good one Matt! Nothing like spending quality time with a quality lens. I could see maybe buying an adapter and using your Hasselblad lens on one of those newfangled filmless cameras, but not on an enlarger. Actually I've seriously been thinking of buying one of those adapters to try my Pentax 67 lenses on my newfangled filmless camera. JohnWIf someone loves their Hasselblad lens, this gives them the chance to spend more time with it.
Seems oddball. Do you have a picture or link?Apparently,Hasselblad "V" s\Series lenses can be used as enlarging lenses.
Apparently,Hasselblad "V" s\Series lenses can be used as enlarging lenses.
Has anyone here done this and if so, what were your likes or dislikes about the matter? Eli
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