vignetting

[misok]

Hi,

this is my first post on this great foum. I've been a SLR guy since i remember
but lately i'm more and more into RF, mostly because i got a pretty Zorki 4
+ i 26m and i just can't ignore the charisma of RF shooting anymore.

But my question ... ( i hope it can be posted here )
I love shots with some vignetting and i'd like to achieve this effect permanently
with my Industar. Is there such a way to modify the lenses (camera) ? I was thinking
of adding a mask between lenses and shutter curtains or something.. or just too small hood.. i'd like to achieve nice soft vignetting, not with sharp edges.

Thank you for all opinions.

All the best,

M.

 

[RML]

A hood that's too small will do the trick. 🙂

 

[vicmortelmans]

Get yourself an Olympus XA2/3. I just noticed the other day that it has quite some vignetting.

But seriously, although it sometimes has a pleasing effect, I would not try to achieve it during exposure. It must be quite easy to achieve this by postprocessing scanned images or even during dark-room print and the level of vignetting would become more controllable. Also, by doing it during exposure, the 'vignetted' image area will suffer shadow detail loss.

Groeten,

Vic

 

[misok]

Thanks for both reactions.

It must be quite easy to achieve this by postprocessing scanned images or even during dark-room print and the level of vignetting would become more controllable. Also, by doing it during exposure, the 'vignetted' image area will suffer shadow detail loss.


Vic

I know it's probably best done in the darkroom, but there days i don't have one so i was thinking of modifying glass.. and you're right, vignetting achieved this way would be accompanied with significant contrast loss. So i'll play with PS like before ..

 

[Spyderman]

I guess you want exposure fall-off = gradual darkening of frame from center to corners. But this isn't the same as when you completely block corners by some smaller hood or more filters, which makes only corners completely black.

My experience with a Jupiter-12 35/2.8 is that wide open and at f/4 it shows quite strong light fall-off, and I guess also ultra-wides from Voigtlander show this effect with open aperture. Also, as wasmentioned in previous posts - the Oly XA series cameras have light fall-off...

 

[payasam]

M., this is best done in the darkroom or in an image editing program. Modifying the camera will give you the effect in all your shots, which is probably not what you want. Also, for a blurred effect you'll need something far from the film plane.

A narrow round hood will give you squared off "vignetting", while your frame has an aspect ratio of 1:1.5. You'll waste both ends of the frame.

You could try a hood cap with an oblong cut-out. Needs to be aligned carefully, but has the advantage that you can use it only when you want. Black (or blackened) material.

Ondrej, could you please post a picture or two so that I might see how the J-12 behaves at full aperture? This week I should get one from Oleg for my Zorki. What you say is entirely unexpected. Haven't seen anything like it in other descriptions of the lens.

 

[Spyderman]

Some of my pictures with J-12 can be found here,
but this and this were shot wide open.

 

[Finder]

Mechcanical vignetting is cause by an aperture being somewhere between the lens pupil and image plane - it doesn't matter if that is in object or image space, but image space is easier. The softness of the edge is dependent on where that aperture falls between the pupil and plane - the closer to the pupil, the softer the edge. The depth of focus will also affect it. However, you would need several aperture masks if you intend to use different apertures for exposure or DOF.

An easier way may be to smoke a UV filter to darken the edges like a reverse center filter. Then you can use it with many lenses and remove it if you no longer like the effect.

If you have photoshop, you could simply take a flat of a vignetting or use a gradient and stack that on your images to create the effect. Once you have the vignetting frame, it should be quick and easy to add when you want.

 

[payasam]

Thanks, Ondrej. Nothing objectionable there. What a relief.

 

[Film dino]

"Some of my pictures with J-12 can be found here,.."

Enjoyed your Flickr photostream Ondrej
David