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Sigma 18mm 2.8
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PostPosted: Mon Oct 26, 2009 6:55 pm    Post subject: Sigma 18mm 2.8 Reply with quote

Hello everybody!
Anybody knows anything about this lens? Is is supposed to be
a rare one, because I could not find any info in the Web.
It is too dreamy in my Olympus E-510 at 2.8 and 4.
It is better at 5.6 and 8. I have also taken some photos
with my X570 which I have to develop, in order to post samples.


PostPosted: Mon Oct 26, 2009 7:48 pm    Post subject: Reply with quote

There's an 18mm F3.5. Are you sure it isn't that one?


PostPosted: Mon Oct 26, 2009 7:54 pm    Post subject: Reply with quote

I found this one on ebay.com.my:

Click here to see on Ebay

Looks pretty old. M42.


PostPosted: Mon Oct 26, 2009 7:55 pm    Post subject: Re: Sigma 18mm 2.8 Reply with quote

PapadakosPanagiotis wrote:
Hello everybody!
Anybody knows anything about this lens? Is is supposed to be
a rare one, because I could not find any info in the Web.
It is too dreamy in my Olympus E-510 at 2.8 and 4.
It is better at 5.6 and 8. I have also taken some photos
with my X570 which I have to develop, in order to post samples.



Not only rare crappy too, buy and sell lens ... nobody published that is good and also that is crap because hard to sell after. Sigma made crappy MF lenses with some exception only.

This is my guess only.


PostPosted: Mon Oct 26, 2009 7:57 pm    Post subject: Reply with quote

http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/20312-sigma-18mm-f2-8-vs-pentax-da21-f3-2-pics-comments-inside.html


PostPosted: Tue Oct 27, 2009 9:42 am    Post subject: Reply with quote

cooltouch wrote:
I found this one on ebay.com.my:

Click here to see on Ebay

Looks pretty old. M42.

This is the one. I have it for Minolta


PostPosted: Tue Oct 27, 2009 8:05 pm    Post subject: Re: Sigma 18mm 2.8 Reply with quote

Attila wrote:
Sigma made crappy MF lenses with some exception only.

This is my guess only.


I tend to agree. Back in the days of MF, there were a few exceptions, one of which I owned: the Sigma 600mm f/8 mirror (mine was the late model black one).


PostPosted: Wed Oct 28, 2009 6:40 am    Post subject: Re: Sigma 18mm 2.8 Reply with quote

cooltouch wrote:
Attila wrote:
Sigma made crappy MF lenses with some exception only.

This is my guess only.


I tend to agree. Back in the days of MF, there were a few exceptions, one of which I owned: the Sigma 600mm f/8 mirror (mine was the late model black one).


Sigma Superwide 24/2.8 II is certainly also an exception.


PostPosted: Wed Oct 28, 2009 12:05 pm    Post subject: Reply with quote

Sigma 135mm f1.8 too.


PostPosted: Wed Oct 28, 2009 5:58 pm    Post subject: Reply with quote

Attila wrote:
Sigma 135mm f1.8 too.


Yeah, but to be fair, that same lens was marketed by several different outfits. I don't know if it was Sigma that actually built the 135mm f/1.8, but I've seen it as a Spiratone, Soligor, Rexatar, 5-star, and others. I would agree however that some examples of this optic can be quite good. Others I've see were just so-so.