raid
Dad Photographer
Who here has used such a lens? I received today a KMZ made J-8 from 1952. It has 18 aperture blades. I wonder who made the aperture mechanism to have so many blades. Was it KMZ in 1952 or did someone later on craft such aperture blades for the J-8? It states online that IRONGlass modified the lens.
I will try to use the lens tomorrow.
I will try to use the lens tomorrow.
Huss
Veteran
Interesting, the opposite of the Zenitar ME1 that has only 2 aperture blades and a square iris.
raid
Dad Photographer
I read about such a lens at LeicaPlace, and someone here saw the same lens for sale, and he told me about it. I then bought is immediately that day.
Ko.Fe.
Lenses 35/21 Gears 46/20
I remember lens like this surfaced on exAPUG earlier this year. SN 5216600.
https://www.photrio.com/forum/threads/jupiter-8-with-18-aperture-blades.145906/
My personal conclusion, it was New Year assembled lens. Double after double.
https://www.photrio.com/forum/threads/jupiter-8-with-18-aperture-blades.145906/
My personal conclusion, it was New Year assembled lens. Double after double.
Huss
Veteran
I remember lens like this surfaced on exAPUG earlier this year. SN 5216600.
https://www.photrio.com/forum/threads/jupiter-8-with-18-aperture-blades.145906/
My personal conclusion, it was New Year assembled lens. Double after double.
Imagine what would happen if Russia won the world cup. Quadruple sets of aperture blades..
DanskDynamit
Well-known
it's an IRONGlass frankenupiter.
nukecoke
⚛Yashica
I have an Industar-61 with 10 blades AND click stop. Maybe not too uncommon, but given the large numbers of other Industar-61s and careless sale descriptions, I felt lucky to find one.
David Hughes
David Hughes
Hmmm, that's interesting; my Zenitar-K2 has only 6 blades.
I hope we see some shots from the 18 blade wonder: please Raid...
Regards, David
lynnb
Veteran
Yes Raid, I'd like to see pictures too..
raid
Dad Photographer
I remember lens like this surfaced on exAPUG earlier this year. SN 5216600.
https://www.photrio.com/forum/threads/jupiter-8-with-18-aperture-blades.145906/
My personal conclusion, it was New Year assembled lens. Double after double.
I bought the same lens (same serial number). The buyer of that lens must have sold the lens.
raid
Dad Photographer
Hi David,
I will take some photos of the lens and with it too.
By the way, the Zeiss Planar 85/1.4 and Distagon 35/1.4 both have only 3 aperture blades in the version made for the Rollei QBM SLR system. The OOF rendering gives triangles and not circles.
raid
Dad Photographer
As soon as feasible, Lynn.
The cost for the lens was about $100 total (including shipping).
raid
Dad Photographer
It may have been a challenging job to create an 18-blades aperture mechanism. How much would a camera repair person in the USA or UK charge to create such a lens?
raid
Dad Photographer
Here are some snapshots of the lens first.
The lens looks clean.
The lens looks clean.
nukecoke
⚛Yashica
I think it's a rebuilt lens. The lens block says 1952 while the body is a post-1955ish single helicoid design, instead of the pre-1955ish double helicoid deisgn (painful to reassemble if not marked carefully when disassemble).
I have rebuilt a J8 with a 1953 lens block sitting on a 1960s body.
I have rebuilt a J8 with a 1953 lens block sitting on a 1960s body.
raid
Dad Photographer
It looks as if this lens needs some serious shimming. Maybe this is why the previous owner sold it.
Using the M240 RF:
My eyesight is not that bad.
Using the M240 RF:
My eyesight is not that bad.
raid
Dad Photographer
Yes, you are correct. Some website for the company that crafted this lens
http://stores.ebay.com/ironglasslens/
raid
Dad Photographer
When I used LiveView in the M 240:
David Hughes
David Hughes
Thanks; good luck with the shimming.
Regards, David
Regards, David
raid
Dad Photographer
I always ask my friend Brian to help me out there.