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Lens 'A' v Lens 'B' REVEALED
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PostPosted: Thu Nov 22, 2012 9:05 pm    Post subject: Reply with quote
Aanything wrote:
They look quite similar to me.
A seems slightly more contrasty, which - I suppose - also makes me feel the in focus part of the image look slightly sharper.
The backgrounds are hard to compare, there are some more highlights in B, but oof area seem slightly smoother to me. Obviously in both the rendering is really good.


Mate, exactly my thoughts when i first compared the pictures!


PostPosted: Thu Nov 22, 2012 9:06 pm    Post subject: Reply with quote
hifisapi wrote:
One lens is highly regarded and expensive and one is a dirt chepo lens right?


not a 100% true statement in this case but close!

one is a very expensive lens and the other sells for 1/3rd of its price


PostPosted: Thu Nov 22, 2012 9:08 pm    Post subject: Reply with quote
iangreenhalgh1 wrote:
Let me have a guess - one is a J3 Russian copy of the Sonnar 1.5/50 and the other is the ZM Sonnar 1.5/50? Second one is the J3?

I've got a little guessing game going too:

http://forum.mflenses.com/zeiss-opton-biogon-2-8-35-vs-zeiss-skoparex-3-4-35-t54719.html


Very Happy no mate ... im afraid not

i did throw in my little knowledge to test in that thread!


PostPosted: Thu Nov 22, 2012 9:10 pm    Post subject: Reply with quote
SonicScot wrote:
They look practically the same to me, but I'm relatively inexperienced in this mf world so it's no surprise. Smile


i'm no big expert and i make no tall claims either but there's one difference i noticed and to my eyes and taste, this seemed disturbing!


PostPosted: Thu Nov 22, 2012 9:12 pm    Post subject: Reply with quote
iangreenhalgh1 wrote:
Hari wrote:
hifisapi wrote:
A and B look very simiar to me in terms of sharpness, DOF, bokeh, color, contrast, etc.


YES! I was pretty surprised myself as one of them is a pretty expensive lens!


This is why I think one is the J3, they render about the same and the J3 is a copy of the old Sonnar 1.5/50, hence I think the other is the ZM Sonnar. The bokeh is very Sonnar-like imho.


Ian my friend, i would have loved it if you were right but in this case, it doesn't quite match

but the results will seemingly surprise you!


PostPosted: Thu Nov 22, 2012 9:17 pm    Post subject: Reply with quote
Excalibur wrote:
erm For the face...... "A" looks sharper, but "B" looks smoother, and for the background maybe I'd choose "A" as being nicer......all swings and roundabouts though Wink


Your observation is ABSOLUTELY spot on with regards to one being sharper and the other smoother! Hats off to you sir!

the bokeh rendering is a matter of personal taste. so that considered, you're the closest to the "generally accepted" benchmarks for these two lenses


PostPosted: Thu Nov 22, 2012 9:42 pm    Post subject: Reply with quote
fermy wrote:
To be honest, I don't see any differences, so you need to give us some more food to chew on.


i don't know how to give you any details without ratting myself out

let's hang on for another day and see how it plays out?

OK, one clue - one is a fast lens and the other is an average f-stop lens so i stopped it down to match the slower one


PostPosted: Thu Nov 22, 2012 9:47 pm    Post subject: Reply with quote
skida wrote:
I think they are both sort to medium telephotos, possibly 135, possibly a bit shorter.
- why would you say that? Very Happy

skida wrote:
I don't think either are absolutely stunning, but I have a slight preference for 2.
- blasphemy! sacrilege! reality! Very Happy

skida wrote:
I think 1 is a terribly expensive Leitz and 2 is a generic Japanese own-labeled jobby, but it is a pure guess as I don't have much experience in different lenses.
- now now, we're controversial aren't we! Very Happy Very Happy BUT you're 50% accurate. Which 50% i cant tell right now Laughing


PostPosted: Thu Nov 22, 2012 10:28 pm    Post subject: Reply with quote
Hari wrote:
fermy wrote:
To be honest, I don't see any differences, so you need to give us some more food to chew on.


i don't know how to give you any details without ratting myself out

let's hang on for another day and see how it plays out?

OK, one clue - one is a fast lens and the other is an average f-stop lens so i stopped it down to match the slower one


Actually I thought more along the lines of photographic evidence rather than hints Smile. I know one of the lenses since I've seen the images before and I think the other one is Voigtlander Heliar, but I wouldn't be able to tell which is which.


PostPosted: Thu Nov 22, 2012 10:44 pm    Post subject: Reply with quote
fermy wrote:
Hari wrote:
fermy wrote:
To be honest, I don't see any differences, so you need to give us some more food to chew on.


i don't know how to give you any details without ratting myself out

let's hang on for another day and see how it plays out?

OK, one clue - one is a fast lens and the other is an average f-stop lens so i stopped it down to match the slower one


Actually I thought more along the lines of photographic evidence rather than hints Smile. I know one of the lenses since I've seen the images before and I think the other one is Voigtlander Heliar, but I wouldn't be able to tell which is which.


thank you for keeping the known lens a secret Very Happy

the other one is very well known too but in such a blatant comparison, stands its ground really really well!


PostPosted: Fri Nov 23, 2012 12:56 am    Post subject: Reply with quote
Hari wrote:
iangreenhalgh1 wrote:
Hari wrote:
hifisapi wrote:
A and B look very simiar to me in terms of sharpness, DOF, bokeh, color, contrast, etc.


YES! I was pretty surprised myself as one of them is a pretty expensive lens!


This is why I think one is the J3, they render about the same and the J3 is a copy of the old Sonnar 1.5/50, hence I think the other is the ZM Sonnar. The bokeh is very Sonnar-like imho.


Ian my friend, i would have loved it if you were right but in this case, it doesn't quite match

but the results will seemingly surprise you!


Hari, you have me stumped now my friend, I look forward to the reveal Smile


PostPosted: Fri Nov 23, 2012 1:28 am    Post subject: Reply with quote
Hari wrote:
skida wrote:
I think they are both sort to medium telephotos, possibly 135, possibly a bit shorter.
- why would you say that? Very Happy


Actually, I haven't considered what size sensor the camera has, but I think I can see a bit of distance compression in the OOF areas, and that led me to make an assumption "short to medium telephotos" (please excuse the spelling mistake in the original post).

So: It could be something around 50mm with a crop factor of 1.5, too. I will be disappointed if one turns out to be a Helios! Shocked Laughing
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