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Info about this super rare lens Rikenon 24mm 2.8 M42
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PostPosted: Thu Nov 20, 2014 2:11 am    Post subject: Info about this super rare lens Rikenon 24mm 2.8 M42 Reply with quote

I buy this lens , but I don't find any information about it, search in Rikenon lenses list, I can't find nothing.
If you know this lens or have any info about it, please share with me. Thanks a lot. Sorry bad english, best regards, Andre Matos from Brazil.





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PostPosted: Thu Nov 20, 2014 2:38 am    Post subject: Reply with quote

It seems that this is a 10 elements in 8 groups lens from the information here:
http://www.drricoh.de/Rikenon/index.html#WideAngleM42

Other than that, you may be the first to review it.
Happy snaps
OH


PostPosted: Thu Nov 20, 2014 3:05 am    Post subject: Reply with quote

Yes, quite different from known Rikenon lenses.
Looks a bit like a fixed mount version of early Sigma, or maybe Sun.


PostPosted: Thu Nov 20, 2014 4:36 am    Post subject: Reply with quote

Definitely not a common lens.


PostPosted: Thu Nov 20, 2014 7:32 am    Post subject: Reply with quote

Hi, I've got exactly the same lens.

You can see some photos taken here: https://www.flickr.com/search/?tags=rikenon24mm&sort=relevance&user_id=123569846%40N08

Not a bad lens if you don't pay a fortune for it, I got mine for 20€ (65 reais). Has to be stopped at f/8 or f/11 to get decent borders on full frame. Excellent construction, all glass and metal.


PostPosted: Thu Nov 20, 2014 1:41 pm    Post subject: Reply with quote

SIGMA of course. It is a fun lens. I have samples made with 5dmkII somewhere on disk. Will try to find them. Oh here they are. Some vertical:








PostPosted: Thu Nov 20, 2014 11:38 pm    Post subject: Reply with quote

I have this lens. It's definitely made by Sigma (I've seen one like that named Sigma XQ or something like that). It's a vintage ultra-wide angle lens, meaning it's very soft at the corners until it hits f/11. Other than that, it's a typical Sigma XQ lens of the time. Unless you want one for collection, or are offered one at a very low price, it has little to offer beside the rarity factor.


PostPosted: Fri Nov 21, 2014 9:30 am    Post subject: Reply with quote

aoleg wrote:
I have this lens. It's definitely made by Sigma (I've seen one like that named Sigma XQ or something like that). It's a vintage ultra-wide angle lens, meaning it's very soft at the corners until it hits f/11. Other than that, it's a typical Sigma XQ lens of the time. Unless you want one for collection, or are offered one at a very low price, it has little to offer beside the rarity factor.

True, wide-open even 4 or 5.6 edges are soft. 24mm on full frame does give you plenty of angle. Some post-production on this one, Rikenon 24mm (SIGMA) again:


PostPosted: Fri Nov 21, 2014 10:01 am    Post subject: Reply with quote

How does this lens compare compared to CZJ Flektogon 20mm 4.0 ? I'm thinking about switching.


PostPosted: Fri Nov 21, 2014 10:26 am    Post subject: Reply with quote

StyxD wrote:
How does this lens compare compared to CZJ Flektogon 20mm 4.0 ? I'm thinking about switching.

Different viewing angle, different maximum aperture, totally different price level. It doesn't make sense to switch; rather, just buy that Flek if you can find one for a reasonable price.


PostPosted: Fri Nov 21, 2014 10:37 am    Post subject: Reply with quote

Would 100€ be a reasonable price for a mint one ?


PostPosted: Fri Nov 21, 2014 10:53 am    Post subject: Reply with quote

StyxD wrote:
Would 100€ be a reasonable price for a mint one ?


For a 4/20 Flektogon?
A good price indeed, it usually goes for about twice as much.
I'd buy one for €100 if I didn't already have one.