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Forums > Back > Kowa Prominar 500mm f/5.6 SL
Klaus
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#1
02-04-2011, 01:37 AM (This post was last modified: 02-04-2011, 01:40 AM by Klaus.)
[url="http://www.kowa-prominar.ne.jp/pro/lens/feature.htm"]http://www.kowa-prom...ens/feature.htm[/url]





and some more in English:

[url="http://www.kowa-prominar.com/new/telephoto101103.htm"]http://www.kowa-prominar.com/new/telephoto101103.htm[/url]



Quite interesting lens with a module system and ... breathtaking MTFs actually (if true).



Depending on the configuration:

1x CaF2 (!) element

2-3x elements



dcwatch has more info and samples @

[url="http://dc.watch.impress.co.jp/docs/review/date_lens/20110204_424620.html"]http://dc.watch.impr...204_424620.html[/url]
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backcountryskier
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#2
02-04-2011, 05:03 AM
Interesting stuff! Bokeh looks a heck of a lot better than reflectors. 500/5.6 would not be easy to operate, manual focus and no IS of course. Any idea of pricing?
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genotypewriter
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#3
02-04-2011, 05:18 AM
[quote name='backcountryskier' timestamp='1296795791' post='5833']

Interesting stuff! Bokeh looks a heck of a lot better than reflectors. 500/5.6 would not be easy to operate, manual focus and no IS of course. Any idea of pricing?

[/quote]

1 fluorite element close to ~90mm in diameter + 2-3 extra low dispersion elements = can't be cheap.



I estimate the prices to be around that of a Sigma etc. 300 2.8 lens or a bit less.



GTW
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Klaus
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#4
02-04-2011, 07:21 AM
The base units seems to cost just under 2000EUR.

The individual extension modules should be around 200EUR or so.
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netrex
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#5
02-04-2011, 11:54 AM
It looked very nice indeed, until I saw the price <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='Tongue' /> Too much for me at least, but then most things are.



It would be fun to test it though.
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Klaus
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#6
02-04-2011, 11:57 AM
[quote name='Alexander ' timestamp='1296820493' post='5838']

It looked very nice indeed, until I saw the price <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='Tongue' /> Too much for me at least, but then most things are.



It would be fun to test it though.

[/quote]



I canceled the Walimex mirror test, BTW. The measured resolution was well below the minimum mark ...
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netrex
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#7
02-04-2011, 02:15 PM
The Walimex?
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Klaus
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#8
02-04-2011, 02:23 PM
[quote name='Alexander ' timestamp='1296828933' post='5840']

The Walimex?

[/quote]



A few weeks ago I asked whether there was any interest in a test of a 800mm f/8 mirror lens (made by Walimex aka Samyang).
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netrex
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#9
02-04-2011, 02:36 PM
Ah, I see, my memory isn't always good <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt='Tongue' />



Too bad it wasn't good enough. Would have been interesting.
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genotypewriter
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#10
02-04-2011, 10:40 PM
[quote name='Klaus' timestamp='1296804093' post='5835']

The base units seems to cost just under 2000EUR.

The individual extension modules should be around 200EUR or so.

[/quote]

Wow... my price guess of around or under USD3000 (2200 EUR) was spot on! <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='Big Grin' />
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