Summilux 'Double Aspherical' long focus throw normal?

[reddot925]

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Hello,

 

My brother (professional photographer) just got a 35mm Summilux double aspherical, he loves the images from it but asked if I could check if the longer focus throw than the later summiluxes is normal.

 

I tried focusing the lens and the focusing is indeed heavy yet very smooth. Is this the design of the lens or perhaps it need a CLA loving from Leica?

 

Thanks!

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[Guest JMF]

Hi, most probably the lens was sitting on a shelf unused . 

[Bill W]

A longer focus throw is not an indication of a problem, it is just how the lens was designed. If the focusing is "heavy" that is an indication it has not been used much over the years I would say and in need of an oil change!!!! or rather lube job. Great lens.

[NB23]

What kind of professional phtographer is he? Sounds to me like he never handled a lens in his life.

 

There is a scale on the lens. That's all there is to it.

[lct]

Yes the lens simply needs a CLA.

[reddot925]

What kind of professional phtographer is he? Sounds to me like he never handled a lens in his life.

There is a scale on the lens. That's all there is to it.

 

Do you know many professional photographers who handle 30 years old double aspherical lens regularly?

 

On the other hand you could be a professional Internet forum troll, your ability would be to able to tell exactly what kind of a person someone is without knowing anything about him or her , and can give any replies without one word of useful advice in them.

[NB23]

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Do you know many professional photographers who handle 30 years old double aspherical lens regularly?

 

On the other hand you could be a professional Internet forum troll, your ability would be to able to tell exactly what kind of a person someone is without knowing anything about him or her , and can give any replies without one word of useful advice in them.

Double, triple or quadruple aspherical lenses have nothing to do with focus throw. Be they 30 or 130 years old.

 

I'm really worried about the professional part. Come on admit it he's no pro.

[reddot925]

Double, triple or quadruple aspherical lenses have nothing to do with focus throw. Be they 30 or 130 years old.

I'm really worried about the professional part. Come on admit it he's no pro.

 

He's a Fuji X-photographer, with a couple of books published and had exhibitions in several countries.

 

Why you so interested in his life rather than the actual lens question, in a lens forum no less, maybe your life is not what you hoped it would be?

[lct]

The OP said his brother is a professional photographer. Bad manner to suggest he could be a liar. I have no experience with the 35/1.4 aspherical so i don't know if its focus throw is longer than that of the 35/1.4 asph. Interesting question though.

[NB23]

He's a Fuji X-photographer, with a couple of books published and had exhibitions in several countries.

 

Why you so interested in his life rather than the actual lens question, in a lens forum no less, maybe your life is not what you hoped it would be?

Because we are actually discussing focus throw. And any "pro" worth his salt knows that the focus throw od any lens, if it follows the focus scale on the lens, is absolutely normal.

 

My conclusion was a firm and well educated conclusion.

 

Question: Blurb book?

[NB23]

Can we see his pro work?

[reddot925]

 

Because we are actually discussing focus throw. And any "pro" worth his salt knows that the focus throw od any lens, if it follows the focus scale on the lens, is absolutely normal.

 

First useful information from you , someone finally helped you with a reply ?

[NB23]

You must be trying, unsuccesfuly, to be sarcastic.

 

My answer was super clear in my fisrt reply: "There is a scale on the lens. That's all there is to it.".

The scale on the lens. Get it? It's just that you didn't understand.

 

That's maybe like rocket science: only rocket scientists understand it.

 

I'm still curious about your brother's pro work. Have a link?

And why can't he ask the forum himself?

 

My brother would never do that for me and I'm curious because I'd never go on a snap-on tool forum to ask a Super basic question about one of his snap-on tools just to help him out, because he's a Pro mechanic, while not having a clue about snap-on tools myself.

 

It's all so absurd.

[lct]

According to robert-gregory, "Focus throw is a bit longer than the ASPH and most modern Leica lenses". Dunno if it answers the OP's question but it answers mine so forget it please if it was OT.
https://www.l-camera-forum.com/topic/154768-summilux-35-hoods-aspherical-asph/page-2?do=findComment&comment=1712976

[Ecar]

Don't know about the focus throw compared to the non-AA, as I'm not fortunate enough to own this lens - but Ned's point is all there is, really: if the rotation of the ring follows the scale from minimum distance to infinity, then it's fine.

 

Regarding 'heavy' focus, it could be that the lens has been unused for a while and the grease has solidified a bit. Doesn't necessarily need a CLA, but some exercise could be sufficient. If it doesn't improve after a few days of regular use, then yes, perhaps a CLA is in order. FWIW, several of my old lenses had very sticky focus when I received them, but progressively loosened up and went back to behaving normally (and stayed this way) after some use.

[lct]

The OP's question was about the length of the focus throw if i'm not mistaken.

[Ecar]

Seems to me like there were two questions, but I could be wrong.

[lct]

Seems to me like there were two questions, but I could be wrong.

 

Then i did not understand the point you made about focus scale sorry. Lenses with the same focus scale can have different focus throws don't they?

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[Exodies]

There could be a gearing between the focus ring and the focus scale ring.

[lct]

Different helicoid ramps with different thread pitches i guess. I'm no techie at all though. Fact is there are significant diffences between focus throws anyway.