Trying an Industar 50

[Scarpia]

I have a rigid Industar 50 which I bought in Europe about 40 years ago. It exhibits flare just like Fidget's even though it is coated and unscratched and I use a hood. On the other hand my collapsible one aquired last year on Ebay appears sharper and shows no sign of flare. I am at a loss to explain it.
Kurt M.

 

[John Robertson]

have a look through the front of the lenses, quite often FSU lenses don't have the edges of the lens elements "blackened" When you look through the front of the Industar on my Fed 50, the lens elements have white edges, unlike the collapsible 50, and consequently it has a tendency to flare.
whether this is an oversight, or a cost cutting exercise, I don't know!!

I had a Lubitel with a lens like this, I dismantled the lens, a simple job on this camera, blackened the edges of the elements with a black marker pen, and re-assembled. It made a dramatic difference.
I don't know if would tackle this on a more complicated lens though!!

 

[raid]

Ah, I see!! a mere kid compared to me,

John: So I am a very young 52 year old kiddo!

Raid

 

[raid]

have a look through the front of the lenses, quite often FSU lenses don't have the edges of the lens elements "blackened" When you look through the front of the Industar on my Fed 50, the lens elements have white edges, unlike the collapsible 50, and consequently it has a tendency to flare.
whether this is an oversight, or a cost cutting exercise, I don't know!!

I had a Lubitel with a lens like this, I dismantled the lens, a simple job on this camera, blackened the edges of the elements with a black marker pen, and re-assembled. It made a dramatic difference.
I don't know if would tackle this on a more complicated lens though!!

John,

There was a similar comment on the Nikon Forum where it was mentioned that Nikkor lenses have blackened interiors while some FSU lenses don't. This is interesting to know, and useful when a lens can be easily opened for a blackening job as you have described.

Raid