Opticallimits

http://www.opticallimits.com/canon-eos/5...f28eosapsc



Still great!

I might have to go for this lens. Cheap and I assume the same build quality as the 85mm 1.4, which I already have (but with automatic aperture). And it works on my Pentax Z-1p as well. It's so cheap, this and the Sigma 8-16mm might be what I'm going for.



Any idea if any mounts do have automatic aperture? Just curious since your tested sample of the 85mm does not, yet mine do.

[quote name='Klaus' date='13 July 2010 - 08:40 PM' timestamp='1279050041' post='987']

http://www.opticallimits.com/canon-eos/5...f28eosapsc



Still great!

[/quote]





Great performer!

However for APS-C, if one already own a EFs17-55 2.8, is it a good idea adding this 14mm full manual lens?

[quote name='Klaus' date='13 July 2010 - 08:40 PM' timestamp='1279050041' post='987']

http://www.opticallimits.com/canon-eos/5...f28eosapsc



Still great!

[/quote]



Yes, but it does not make as much sense as on FF because "There's a bunch of APS-C zoom lenses which outclass the Samyang in this respect".



Happy shooting,

Yakim.

Something just hit me, this lens will be good for astro photography, so I will be getting it, even if I might use the Sigma 8-16mm for other things more often.



I saw this just now (be sure to use 720p): http://www.youtube.com/watch?v=iPbnHXQBh_Q

A very inspiring film! Thanks for the link.



Regards, Pinhole

[quote name='Klaus' date='13 July 2010 - 08:40 PM' timestamp='1279050041' post='987']

http://www.opticallimits.com/canon-eos/5...f28eosapsc



Still great!

[/quote]

I checked with foto-tip.pl, they say the Pentax-version, as with my Samyang 85mm 1.4, has automatic aperture (the A-setting on the aperture ring). Maybe it's because of the pin that sticks out and controls the aperture on K-mount lenses, no electronics needed maybe?



I'll be buying this lens when it gets dark at night here and I again can see the stars <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' />

The question may be whether it's really wide enough for APS-C.

[quote name='Alexander ' date='19 July 2010 - 07:24 PM' timestamp='1279560264' post='1129']

I checked with foto-tip.pl, they say the Pentax-version, as with my Samyang 85mm 1.4, has automatic aperture (the A-setting on the aperture ring). [color="#0000ff"]Maybe it's because of the pin that sticks out and controls the aperture on K-mount lenses, no electronics needed maybe?

[/color]

I'll be buying this lens when it gets dark at night here and I again can see the stars <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' />

[/quote]

Exactly, mechanical coupling.



I am not sure whether it will therefore work well with the camera when it comes to metering. Something worthwhile investigating, however, because that would make life a lot easier already.



As Klaus says, however, you may find it not wide enough on APS-C.



Kind regards, Wim

[quote name='wim' date='19 July 2010 - 10:07 PM' timestamp='1279573652' post='1135']

Exactly, mechanical coupling.



I am not sure whether it will therefore work well with the camera when it comes to metering. Something worthwhile investigating, however, because that would make life a lot easier already.



As Klaus says, however, you may find it not wide enough on APS-C.



Kind regards, Wim

[/quote]

It works well with the 85mm 1.4, so I would assume it does with the 14mm 2.8 as well.