you can never have enough 50's

> when you find lenses you forgot you had there's a good chance you have too many

That's not so bad.

When you find 50's that you forgot you had and don't use them because you have no cameras that have that style mount. And not for lack of trying!

Anyone need some lenses for a Wollensak Fastax camera?
 
Frank & Brain:

Beautiful Collections!

Please tell us which one is your one true love, and why...



Brian Sweeney said:
It's really bad when you buy cameras that you know are "Unorthodox" because the lens that is on it has such a great reputation. And then try to think of ways of "hacking" it onto a different mount.

Brian Sweeney said:
When you find 50's that you forgot you had and don't use them because you have no cameras that have that style mount. And not for lack of trying!


Brian,

Ever have a hardware solution before your have a problem? It hurts just as much, if not more...



RJBender said:
I thought you were talking about these:

50new.jpg


Nice collection, Frank. 🙂


R.J.,

You just make my day!

Cheers




Will
 
50mm lenses are wonderful to own and use. I will slowly add additional FSU lenses to my limited collection. I only have a 50/1.4 (adjusted by Brian) and a couple of Industrar 61L 50/2.8 that came with the two FED5 bodies I bought new before the FSU collapsed. Now they cost so little.
 
Raid, a J-8 (Zeiss Sonnar copy) and a collapsible I-10 (Elmar sort-of copy) are the ones to get now that you have a J-3.

Will, if I could choose only one, it would be the collapsible Summicron at this point. Some of the other lenses I just don't know well enough yet.
 
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FrankS said:
Raid, a J-8 (Zeiss Sonnar copy) and a collapsible I-10 (Elmar sort-of copy) are the ones to get now that you have a J-3.

Will, if I could choose only one, it would be the collapsible Summicron at this point. Some of the other lenses I just don't know well enough yet.

Frank,
I saw a collapsible Summicron for sale on PN for less than $270 last night. Check it out.
 
OK, Frank. Maybe someone who does not have such a lens will pick it up. I will look for good examples of the two FSU lenses suggested by you.
 
RAid, there are 2 types of collapsible lenses: I-22 and the Fed I-10. I have read where the I-22 doesn't fit on some cameras because of the infinity lock tab. My I-10 fits on the screw mount and M mount cameras that I have.
 
FrankS said:
RAid, there are 2 types of collapsible lenses: I-22 and the Fed I-10. I have read where the I-22 doesn't fit on some cameras because of the infinity lock tab. My I-10 fits on the screw mount and M mount cameras that I have.

Oh, It's really easy to screw out the little pin that gets in the way. I just did that and today I took it all apart and cleaned all the glass surfaces of haze. Well that's an I-50 but It should be the same sort of tab as the I-22, right? I couldn't swab away the scratches though 🙁

/matti
 
50mm Lens Tests

50mm Lens Tests

Frank:

Thanks for the suggestions in your PM about running a test. Here is what I have done. I set up a quick indoor scene with my son working at a table. I included a resolution test card at roughly the same focal plane as where I had focused the camera (his face). I set the camera up 1.7 meters away. I shot 3 exposures with each 50mm lens at the lowest 3 f/stops.

Below are scans of each lens at f/4, so that I should be able to compare roughly equivalent depths of field. Please pardon the dust (boulders, in some cases)... I was not doing these scans for artistic value, just to get them done quickly.

I am disturbed by how unsharp they look, but perhaps I am not accustomed to viewing scanned 35mm negatives... most of my work is in 6x6. Or perhaps the rangefinder on the Zorki-4 needs adjustment... I will check that this afternoon with a focusing screen taped to the film guides.

I do not know what constitutes the "best" lens from the group... I can certainly use the resolution chart in each to pick the sharpest, but that is not necessarily the best.

I'll take any guidance...
 
It does look like the camera body is uniformly causing the focus to be in front of your son's face, more to the plane of the computer lid. What did you scan the negs with, and how did you do it? Someone else will have to help with scanner settings and stuff.
 
The negatives were scanned on our Epson 4990 scanner at the density my son normally uses for all his work, which I think is pretty high, but I don't know for sure.

I just tested the lenses by putting one of my Olympus focusing screens in the film channel of the Zorki and checking the focus with a loop at close range and at a distance. On the close range tests, I measured the actual distance with a meter tape and the lenses were within 2 cm (~1") of the markings on the barrel, so I think they are OK. But when I checked the actual focus of the lens against the RF spot, it was off by a bit: a subject 1.7 m (actual distance) showed in focus at 1.5 m according to the RF. So there is some adjustment needed there - - I need to find the instructions for doing that.

But if, for a moment, we assume that I wanted to take pictures of the laptop lid rather than my son, which of the lenses has the best look to it? The I22 seems to be the sharpest at f/4 while the I61 seems to have the most contrast. The J8 seems to have a slightly off exposure. I can see that the images and the "air" they create are different, but I don't know which to choose.
 
Which to keep? The I-22 because it collapses, and the J-8 (if you have a good one) because it's a Zeiss Sonnar clone. What was the other lens?

It's difficult from these test photos to determine which lens is "best". Try again with more dynamic lighting, I think.
 
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This is a well-planned test, but we still don't know for sure whether one lens stands out being the "best" somehow. Maybe having a window-lit face with allow us to see which lens gives more pleasing results or maybe have some close-up shots will help.
 
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