Leica 50mm ƒ/1.4 Summilux-R vs Leica 50mm ƒ/2.0 Summicron-R
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JimU
Registered: Jan 21, 2009
Total Posts: 137
Country: Canada

I took arrival of my Leica 50mm ƒ/2.0 Summicron-R and was curious to see the differences between that and my friend's Leica 50mm ƒ/1.4 Summilux-R. I'm about to convert mine to Sony Alpha mount, my friend uses his on Canon EOS. I'd thought I'd share my thoughts.

The Summicron is noticably shorter and lighter.



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Here's some initial test shots on his Canon EOS 5D Mk I

1) Summilux, 0.05sec ƒ/1.4


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2) Summilux, 0.077sec ƒ/2.0


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3) Summilux, 0.125sec ƒ/2.8


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4) Summilux, 0.25sec ƒ/4.0


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5) Summilux, 0.4sec ƒ/5.6


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6) Summilux, 0.8sec ƒ/8.0


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7) Summicron, 0.1sec ƒ/2.0


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8) Summicron, 0.125sec ƒ/2.8


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9) Summicron, 0.25sec ƒ/4.0


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10) Summicron, 0.4sec ƒ/5.6


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11) Summicron, 0.8sec ƒ/8.0


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I decided to try to convert a Leica myself for my Sony á900 when I found a liking to the way Leica Noctilux shots turned out on the Flickr Noctilux pool. My intention was to use an m42-alpha adapter as a mount swap just like how I converted my 58/1.2 rokkor. I ended up buying a Leitax adapter which i will be installing this weekend. I didn't feel confortable experimenting with a $700 summilux so I opted for a summicron.

I scoured the interweb for differences between the '50 'lux & 'cron. It seems like hardly anyone has had both. 'Cron owners tend to claim the 'Cron out performs the 'lux in terms of sharpness wide open (no surprise) and bokeh quality. I kinda found the second one questionable.

This is a very quick comparison, tripod, 2 second MLU in my friends kitchen, but I don't really see much of a difference between the two lenses except for 1 stop and about $500 difference. Makes me want to do a few more tests before I perform the conversion.

any thoughts?


JimBuchanan
Registered: Jan 11, 2006
Total Posts: 736
Country: United States

The Lux 50 is not the current version and it is reported the current version is much better IQ, but prohibitively expensive. You may find your Lux 50 to be weaker in the corners at wider apertures, than the Cron 50.

My cron 50 was very sharp accross the frame into the corners. The big question is, will you use f/1.4 alot?



Greg Feldman
Registered: Mar 14, 2005
Total Posts: 5423
Country: United States

JimU wrote:
I don't really see much of a difference between the two lenses except for 1 stop and about $500 difference.


I'd say that's about right--which makes the 'cron probably the best overall 50mm of all time. There are 50s that are critically sharper; there are 50s that have "better" bokeh (subjectively; there are 50s that are more affordable; there are 50s that are more compact. (I'm not convinced that there are 50s that are built better.)

The 'cron is a 9 of 10 in all those categories, as opposed to a 10 in one and a 6 in others.



cavewalker
Registered: Dec 27, 2008
Total Posts: 81
Country: Germany

I like the Summilux better, because of the Biotar-Type Highlight bokeh.



mMontag
Registered: Dec 15, 2008
Total Posts: 203
Country: United States

Thanks for posting these - very interesting. I almost bought a Lux (older version) but opted for the Summicron. I'd love to find a reasonably priced Lux E-60 - maybe in the next lifetime. Until then - I'm really enjoying the 50/2, one of my favorites.



JohnJ
Registered: Jul 09, 2005
Total Posts: 755
Country: Australia

Greg Feldman wrote:
JimU wrote:
I don't really see much of a difference between the two lenses except for 1 stop and about $500 difference.


I'd say that's about right--which makes the 'cron probably the best overall 50mm of all time. There are 50s that are critically sharper; there are 50s that have "better" bokeh (subjectively; there are 50s that are more affordable; there are 50s that are more compact. (I'm not convinced that there are 50s that are built better.)

The 'cron is a 9 of 10 in all those categories, as opposed to a 10 in one and a 6 in others.


+1

I tested an E60 lux against my cron and decidied to keep the cron, mainly a financial decision as the difference wasn't worth the money. Yes, if they cost the same I'd get the E60, but they don't.

JJ



thrice
Registered: Jul 10, 2008
Total Posts: 1372
Country: Australia

Figure I'd better give you guys a heads up, I was gonna bid up and acquire another one, but I don't have enough disposable income atm. I've already communed with the seller and he ships worldwide for ~55 euro and will declare at a lower value if (like me) you live in a country with insane import tax.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110424092032

3hrs to go.



voka_gsw
Registered: May 21, 2005
Total Posts: 147
Country: Serbia & Montenegro

cavewalker wrote:
I like the Summilux better, because of the Biotar-Type Highlight bokeh.


+1

You have excellent taste in bokeh, cavewalker.



PeterGlaso
Registered: Jul 28, 2008
Total Posts: 183
Country: Norway

thrice wrote:
Figure I'd better give you guys a heads up, I was gonna bid up and acquire another one, but I don't have enough disposable income atm. I've already communed with the seller and he ships worldwide for ~55 euro and will declare at a lower value if (like me) you live in a country with insane import tax.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110424092032

3hrs to go.


He has 0 feedback as a seller though... Never had any probs buying expensive lenses on eBay, but personally, i'd like to use a seller with many sales and good feedback.



thrice
Registered: Jul 10, 2008
Total Posts: 1372
Country: Australia

PeterGlaso wrote:
He has 0 feedback as a seller though... Never had any probs buying expensive lenses on eBay, but personally, i'd like to use a seller with many sales and good feedback.


Oh I hear ya, but ebay will cover you, and also he said it's unmounted. Seemed like a really genuine guy over e-mail, fluent english etc. If he was a scammer wouldn't he have posted on US ebay and specified he shipped everywhere to get the exposure?

Either way, someone got a great deal. I paid 2k for mine and considered myself lucky, such a great lens.



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