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APO Summicron 50/2 ASPH: Central veiling flare / fogging


pajamies

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I will recheck in daylight tomorrow, but I did not see the reported silver rings with the available in-house light. I changed the inspection angle and I turned the focus ring. No silver ring to be seen... (the aperture at f2, of course).

 

Ok - diffuse day-light in Norway uncovers three grayish, very (very) tiny rings, looking into the lens, and nothing like pajamies shows. The rings could very well have been black, which might be what the corrected lenses look like.

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May i ask you if the better definition of this lens wide open compared to its predecessor or summilux holds when the diaphragm is closed at 5.6 or 8 ? Could you compare ?

It would be surprising if one can see more definition at f/5.6 or f/8, compared to the 50/1.4 asph for instance, save perhaps in the extreme corners. I have no experience with the 50/2 apo though.

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Ok - diffuse day-light in Norway uncovers three grayish, very (very) tiny rings, looking into the lens, and nothing like pajamies shows. The rings could very well have been black, which might be what the corrected lenses look like.

 

I also see the 2 or 3 gray rings and then way down inside I see one thin silver ring which is very hard to see, but I do believe it is silver, but only the thin edge of it is visible to me.

 

I have not sent this one in. I received it in July of this year while in Europe and getting it to Solms could be a real mess to deal with AFA customs is concerned since I am pretty sure Leica NJ would not want to get involved with this lens.

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I have not sent this one in. I received it in July of this year while in Europe and getting it to Solms could be a real mess to deal with AFA customs is concerned since I am pretty sure Leica NJ would not want to get involved with this lens.

 

Seems like we have very similar versions of the lens. I have contacted Leica/Solms, and I am advised to ship it via the Norw importer. Which means they will take care of the paper-stuff (Norw does not belong to the EU). I would perhaps think the same is the case for Leica NJ; although I see a potential conflict regarding the address of purchase.

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I also see the 2 or 3 gray rings and then way down inside I see one thin silver ring which is very hard to see, but I do believe it is silver, but only the thin edge of it is visible to me.

 

I have not sent this one in. I received it in July of this year while in Europe and getting it to Solms could be a real mess to deal with AFA customs is concerned since I am pretty sure Leica NJ would not want to get involved with this lens.

 

Lou,

 

I would ship it directly to Solms after you have contacted them via email and phone call.

FedEx should be able to tell you the extra form you need to send in as the value is above a relevant number.

Leica then will properly send it back so that you don't have to pay customs duty on reentry.

Declare as item needing repair.

 

Good luck.

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If you can cope without it I would agree that it should be returned.

 

1. It may well flare and ruin your greatest photograph of all time ;).

2. Should you ever sell it in the future potential buyers will lkiely be aware of this issue and may well check the lens.

 

regards,

Mark

 

Mark, thanks for your very sensible and well considered advice which, obviously I should heed.....

however......

1. I suspect that I have already taken that particular photograph!

2. I wont be selling this lens & when I fall off the perch someone else can worry about it.

 

but really....thanks again, most sincerely.

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May i ask you if the better definition of this lens wide open compared to its predecessor or summilux holds when the diaphragm is closed at 5.6 or 8 ?

Could you compare ?

 

No, sorry! I cannot compare as I do not have either it's predecessor or the Summilux 1.4.

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Sent mine in today. I have a trip planned for the first week of February and I'm hoping it will be back by then.

 

February 2014 :)

 

I sent mine October 1. Carmen of Leica USA checked with Solms on when they might be returning the lens and was told that "we are working on a solution." Other forum members, how would you interpret that?

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I sent mine October 1. Carmen of Leica USA checked with Solms on when they might be returning the lens and was told that "we are working on a solution." Other forum members, how would you interpret that?

 

They don't know but will take care of the problem :) Seems not an easy repair..

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My dealer advised me not to return mine yet, hinting that the informal advice he had received was that the problem and the solution had not yet been identified definitively, because there appear to be variations between individual lenses. This despite the lens being built to tighter tolerances than any other Leica lens.

I have a three-month trip scheduled for February to April 2014, and I would love to have my lens fixed beforehand. However, I will wait until my return and then decide what to do.

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I don't know how many of these lenses they have produced - a few hundred would be my guess - but I think they should fix the problem and start again with new production. We don't know anything definite about what the problem is but if there's variation from lens to lens and the fix does not always work, it sounds like some tolerance issue. Who knows?

 

Mine is in Solms at the moment and two other items sent in for service at the same time have been returned leaving the APO 50 behind.

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I don't know how many of these lenses they have produced - a few hundred would be my guess - but I think they should fix the problem and start again with new production. We don't know anything definite about what the problem is but if there's variation from lens to lens and the fix does not always work, it sounds like some tolerance issue. Who knows?

 

Mine is in Solms at the moment and two other items sent in for service at the same time have been returned leaving the APO 50 behind.

 

Mark

 

How long ago did you send in the 3 items. And how long ago did you get the 2 items back? Thanks.

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We had a sunny day on monday, tried out the 50/2 AA.

Amazing sharpness. Central fogging I have not detected yet.

Propensity for veiling seems to be higher than what I've experienced with Summilux 35/1.4 (new) or the WATE e.g.

 

Here is a link to some pictures from monday.

There is fog in the pictures, but it is real fog from he lake.:)

 

https://www.dropbox.com/sh/j2gtu30y0xvlom4/YoQGNiJzTB

 

Here is a link to the DNG:s / TIFF

 

https://www.dropbox.com/sh/z2p2qr7xgxaa8gy/4X89gXv_4_

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Mark

 

How long ago did you send in the 3 items. And how long ago did you get the 2 items back? Thanks.

This is the status of my APO as of today November 13

repair number XXXXX

Datum Status

09.10.2013 Service order registered on

11.10.2013 Oder confirmation sent

11.10.2013 In repair

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