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New article: The Leica R lenses guide to Leica M240 on overgaard.dk


Overgaard

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Hi Thorsten and thanks for such an engaging article. You certainly brought out great points about use of R glass.

 

Like many (except Lou), I am struggling about which R lenses to use for the M. Certainly close ups and long tele photos were what I missed the most from leicaflex days. So when M was announced purchased the 100 macro, close up glass and an APO double extender.

 

Further, used to carry M2R with R8 and always found 90 to be the crossover so used R for 90 and up. When finally get R M Adapter plan is to use M glass upto 75, and R glass for 100 and 200 with 2x. Can throw in 180 4.0 if needed to get also to 360.

 

Does your article mean you don't like close ups or long teles?

 

Thanks again for the article.

 

Ed

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Actually if you look closely one person (d***i second to top bid) bid 30,000 on 20th Oct and a***g has 'chased' him all the way up until he's outbid him so it doesn't appear to be an illegal action unless it's a shill and d***i and a***g are the same person, which of course we wouldn't know.

 

Pete.

 

Well, they removed the item now. Either him self, or eBay.

 

Just one of those things...

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What The Duck?

 

Zoom lenses can be used on the M in live-view mode, and in theory they look compelling. But in practice, they are not that useful in real life. It's nice to be able to use non-rangefinder-coupled lenses, such as long telephoto or macro lenses ... but you don't want to use a non-coupled standard zoom as your everyday all-purpose lens. I'd prefer a simple Tri-Elmar-M 28-35-50 mm Asph (or an even simpler 35 mm or 50 mm prime M lens) over any fancy non-M zoom lens any day.

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What The Duck?

 

Zoom lenses can be used on the M in live-view mode, and in theory they look compelling. But in practice, they are not that useful in real life. It's nice to be able to use non-rangefinder-coupled lenses, such as long telephoto or macro lenses ... but you don't want to use a non-coupled standard zoom as your everyday all-purpose lens. I'd prefer a simple Tri-Elmar-M 28-35-50 mm Asph (or an even simpler 35 mm or 50 mm prime M lens) over any fancy non-M zoom lens any day.

 

If Leica made a Leica M zoom lens that could go from say 35-75 f/2.0 with clicks for 35, 50, 75 but would work as a normal zoom as well (meaning that it goes from 35-75mm but have slight clicks for 50mm), I think I would be in the market for it. I can't wrap my head around if the rangefinder focusing would actually work, but as long as focusing it would activate the focus aid, it would work.

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Thorsten

 

What what size do you imagine that 35-75/2.0 would come in at roughly? Length and Diameter/

 

Well, a 75mm lens has 75mm from sensor plane to focus inside. Except from advanced lens designs we see, that lens that a 75mm lens is usually around 75mm long and a 400mm is usually 400 mm long.

 

The 21/1.4 however is 65mm long or something whereas the 21/3.4 is closer to the '21mm rule'

 

Zoom lenses tend to be more complicated, though less technical and complicated (bulky) than the existing 28-35-50mm and 15/18/21.

 

f/2 means the focal length divided with two, so that is a maximum 'hole through' of 75mm divided with 2. So the diameter of the glass alone inside would have to be 37.5 mm

 

So a 'guestimate' would be the size of a Noctilux, maybe a little longer and a little less in diameter.

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