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New summicron asph 35mm. How and why did they improve the current one?


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One reason for an updated version might actually not be directly related to Leica. Quite a few people now use Leica lens gear on newer mirrorless camera models from other brands - e.g. Sony A7 series. This includes me, too. I bought the 35/2 ASPH one year ago before I had a Leica M camera. I sold this lens quickly again - because it did not work at all with the Sony FF sensor (always blurry corners even at f/11, uneven focus plane). There are several reasons for it, one is the pupil entrance of the lens the other one is a thicker glass cover on Sony A7 series based sensors compared to Leica's digital sensors. Interestingly, the version 4 non-ASPH and older Leica 35/2 lenses work well here. I suspect that the latest 35/2 ASPH version might correct for those issues very visible on non Leica based FF sensors. I am sure we will hear more about its performance later. 

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The screw-in hoods of my latest wides (35/1.4 FLE, 24/3.8 asph, 21/3.4 asph) are so small that they are almost useless IMHO. I much prefer the clip-on square hoods of current 28/2.8 asph and 35/2 asph lenses personally. Mine do not tend to fall off at all BTW. Same for the hood of my 35/2 v4 which never fell off since the eighties.

 

 

I quite like the engineering quality of the threaded hoods vis-à-vis the clip-on plastic hoods (though the hood that came with the 24/F2.8 Elmarit was very solid) but I agree that they do not seem very effective in their primary role as shades. The one for the 35 FLE seems particularly pointless as a means of mitigating lens flare.

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They usually release more info about a lens design than they have this time. Maybe they just tweaked it to negate focus shift, add better coating and small changes to improve corners @ infinity. These were the weaknesses that I perceived with the old ASPH.

 

Perhaps changes along the lines of the 35 FLE vs pre FLE. We will know soon enough.

 

What was wrong with the coatings on the lens? What do you think they did to make the coatings 'better' ? 

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New coatings may improve flare certainly but they can hardly prevent corner smearings Martin B was referring to. Sony is the only culprit so to speak there, suffice it to use an A7 with thinner sensor stack to see that. Now the uneven focus plane of the 35/2 asph is sometimes a problem, at least for brick walls shooters ;), and a "better" entrance pupil would do no harm i guess but the 35/2 asph is significantly heavier and bulkier than the 35/2 v4 yet. An even taller lens would not be a good idea, other excellent brands can do that.

Edited by lct
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One reason for an updated version might actually not be directly related to Leica. Quite a few people now use Leica lens gear on newer mirrorless camera models from other brands - e.g. Sony A7 series. This includes me, too. I bought the 35/2 ASPH one year ago before I had a Leica M camera. I sold this lens quickly again - because it did not work at all with the Sony FF sensor (always blurry corners even at f/11, uneven focus plane). There are several reasons for it, one is the pupil entrance of the lens the other one is a thicker glass cover on Sony A7 series based sensors compared to Leica's digital sensors. Interestingly, the version 4 non-ASPH and older Leica 35/2 lenses work well here. I suspect that the latest 35/2 ASPH version might correct for those issues very visible on non Leica based FF sensors. I am sure we will hear more about its performance later.

I rather doubt that this is a consideration for Leica. The number of people that primarily buy a cheaper mirrorless and buy a new Leica lens to go with it must be very small. It is rather the other way around, people that own Leica lenses may well buy another body to use them on. It is in Leica's interest to have their lenses perform best on their own bodies.
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You mentioned you have found a 'weakness' with the last ASPH Summicron coatings, I just wondered what that was exactly?

 

 

As much as I like this lens there is plenty of room for improvement in terms of flare resistance.

 

tumblr_ny8oefhuZz1r1w4b4o1_1280.jpg

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I rather doubt that this is a consideration for Leica. The number of people that primarily buy a cheaper mirrorless and buy a new Leica lens to go with it must be very small. It is rather the other way around, people that own Leica lenses may well buy another body to use them on. It is in Leica's interest to have their lenses perform best on their own bodies.

 

Possible that the new Leica M lenses take into account for some issue their predecessors have now on the new Leica SL camera since the SL uses a thicker sensor glass cover (1.1 mm thick) than other M series cameras. In this case of course the question is how those new lenses perform on older M series film cameras for example. 

 

I am sorry to disagree, but I know several people who use Leica M lenses on mirrorless cameras from other brands - some like me have an additional M series camera (film or digital) others don't. 

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As much as I like this lens there is plenty of room for improvement in terms of flare resistance.

 

tumblr_ny8oefhuZz1r1w4b4o1_1280.jpg

 

 

Hence the new hoods. I don’t think new lens coatings would have made any difference with this shot. And for what it’s worth, I don’t think the flares matter here anyway. It’s still a cute picture.

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I know several people who use Leica M lenses on mirrorless cameras from other brands - some like me have an additional M series camera (film or digital) others don't. 

 

You know “several people” who do this. I think you just affirmed what jaapv said.

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You know “several people” who do this. I think you just affirmed what jaapv said.

 

Hmmm....sorry, but here is the poll (not started by me!) which exactly focuses on this. The poll started today, check out the results.....clearly says that many use Leica and M lenses on alternative mirrorless cameras. Good for Leica I believe - a new market which they might have already recognized. 

http://www.fredmiranda.com/forum/topic/1408846

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Hmmm....sorry, but here is the poll (not started by me!) which exactly focuses on this. The poll started today, check out the results.....clearly says that many use Leica and M lenses on alternative mirrorless cameras. Good for Leica I believe - a new market which they might have already recognized. 

http://www.fredmiranda.com/forum/topic/1408846

 

Okay, but we’re talking about a niche of a niche.

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