Enlarger lenses (Page 4): :sm24: :sm24:...

Architect1776 Loc: In my mind

imagemeister wrote:

FWIW, you can and in some cases should reverse macro lenses too !....

burkphoto Loc: High Point, NC

BebuLamar wrote:

Now I have a question about using enlarger lenses on cameras. Should I reverse the lens. Reversing the lenses isn't easy as each of my lenses may have a different filter thread diameter. So I wouldn't want to go thru the trouble unless I gain some sharpness.

No. You need not reverse the lens. It is designed to do exactly what you need for closeup work. It is oriented the same way on a bellows as it was on an enlarger. Just imagine the sensor being film in a negative carrier.

The setup shown by Architect is almost exactly the sort of rig I used for 8 years to duplicate and compose slides for AV presentations.

I had a Bogen 60mm enlarging lens on a bellows connected to a Nikon F3. The principle works perfectly for copying film — even better now — due to the availability of raw image capture and processing. (I had a copy stand to mount the camera on, and an inverted Beseler 4x5 Dichroic Color Head with a precision, vernier dial "slide compound" (X-Y movements in .001" increments were possible). The camera had a reticle grid in the viewfinder used for positioning elements for multiple exposures.

GrahamO

llhmontana wrote:

Does anyone know how to use enlarger lenses for macro photography on a bellows.

A long time ago I epoxy glued a thin Asahi Pentax extension tube to the back of a 105 mm enlarger lens. I screwed mounted that on a Pentax thread mount accessory close up bellows. Make sure the lens will be in the correct orientation to read the aperture when it’s mounted. It worked extremely well from infinity to very close up. That was film of course and I was using an Asahi Pentax S1. Open the aperture to focus, then stop down to take, just as with an enlarger. Longer enlarger lenses are best if you do this. 50mm is too short. You can modify most mounts with epoxy glue and thin extension tubes, although now you can buy some lens adapters, but possibly not for enlarger lenses. You could likely use a plastic, camera body cap, with the centre cut out instead of an extension tube. This method would work just as well with digital. Use a tripod of course, mounted on the bellows.

Leitz Loc: Solms

RWR wrote:

How do you know that? The OP hasn’t said, and hasn’t bothered to respond to anything. Probably went elsewhere looking for knowledgeable advice.

Putting in my half pence worth here, I agree that without more information from the OP any response is guesswork. Describing how to mount a lens is foolish if he already has a bellows with camera and lens mounted, and he's surely confused if he tried to follow the advice on how to focus! I also recommend that he check the links in the macro section for factual information and ignore all the nonsense posted here.

Architect1776 Loc: In my mind

Leitz wrote:

Putting in my half pence worth here, I agree that without more information from the OP any response is guesswork. Describing how to mount a lens is foolish if he already has a bellows with camera and lens mounted, and he's surely confused if he tried to follow the advice on how to focus! I also recommend that he check the links in the macro section for factual information and ignore all the nonsense posted here.

Nonsense?

BebuLamar

Leitz wrote:

Putting in my half pence worth here, I agree that without more information from the OP any response is guesswork. Describing how to mount a lens is foolish if he already has a bellows with camera and lens mounted, and he's surely confused if he tried to follow the advice on how to focus! I also recommend that he check the links in the macro section for factual information and ignore all the nonsense posted here.

If you have the lens mounted on the bellow and the bellow mounted on the camera already what else one needs to know to use it?

Architect1776 Loc: In my mind

BebuLamar wrote:

If you have the lens mounted on the bellow and the bellow mounted on the camera already what else one needs to know to use it?

burkphoto Loc: High Point, NC

Architect1776 wrote:

Yeah, the skeptics should just trust us. We've made it work before.

That said, there is a lot more information to be had. Here are the links to the two UHH forums where the serious closeup people geek out.

https://www.uglyhedgehog.com/s-102-1.html (True Macro Photography Forum)

https://www.uglyhedgehog.com/s-113-1.html (Close-up Photography Forum)

imagemeister Loc: mid east Florida

burkphoto wrote:

where the serious closeup people geek out. )

LOL

GrahamO

Leitz wrote:

Putting in my half pence worth here, I agree that without more information from the OP any response is guesswork. Describing how to mount a lens is foolish if he already has a bellows with camera and lens mounted, and he's surely confused if he tried to follow the advice on how to focus! I also recommend that he check the links in the macro section for factual information and ignore all the nonsense posted here.

Leitz, Yes there is nonsense written here, and the nonsense is not what I wrote about when I very successfully adapted an enlarger lens. Perhaps I was foolish in experimenting but it worked beautifully and I took some very good photos that way. No animals were injured. Absolutely nothing exploded or overheated.

Leitz Loc: Solms

burkphoto wrote:

Yeah, the skeptics should just trust us. We've made it work before.

Skeptics indeed! Begging your pardon, but you have provided some rum information yourself -

"Magnification is primarily via the front bellows. Focus is by moving the camera relative to the back of the lens."

There are some bellows whose rear standard is not fixed. Magnification is determined by the lens-camera distance (bellows draw), focus is by moving the entire unit relative to the subject.

"So you should be able to fit one of those bellows together with your enlarger lens, if it has a 39mm (by 1mm thread pitch) male screw thread."

The pitch of the Leica 39mm screw mount is not 1mm, it is 26 threads per inch – just enough difference that one will not engage correctly with the other. As RWR noted, at least one Schneider enlarger lens has a 39x0.75mm mount, which is also the same thread as a 39mm filter.

Leitz Loc: Solms

GrahamO wrote:

Leitz, Yes there is nonsense written here, and the nonsense is not what I wrote about when I very successfully adapted an enlarger lens. Perhaps I was foolish in experimenting but it worked beautifully and I took some very good photos that way. No animals were injured. Absolutely nothing exploded or overheated.

I'm not bold enough to admit to some of the experiments I've done!

GrahamO

Leitz wrote:

I'm not bold enough to admit to some of the experiments I've done!

Leitz, then you will be familiar with nonsense

User ID

`

Architect1776 wrote:

Nonsense?

Yup.

I love you guys ... beats the late nite TV comics.

Kinda sad, such complete lack of self awareness
of your own talents.

Keep on keepin on !

.

Architect1776 Loc: In my mind

User ID wrote:

`

Yup.

I love you guys ... beats the late nite TV comics.

Kinda sad, such complete lack of self awareness
of your own talents.

Keep on keepin on !

.

???