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Samyang 85/1.4

Ruslan Lavrentyev , Jun 09, 2011; 01:56 a.m.

Please, explain me this. Does this lens have auto diaphragm, i.e. the camera measures at open aperture and it closes automaticaly when it shoots (like it was with FM-3a and AI or D lenses or with AI lenses on, say, F100), or the photographer has to close it manually? Which of exposure modes work with bodies like D700, D7000, D300s and the Samyang 85mm on? On official site of Samyang I haven't found the explanation. Regards.

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Leslie Cheung , Jun 09, 2011; 02:09 a.m.

I think it's open aperture but not completely sure.

Mark Stephan , Jun 09, 2011; 02:32 a.m.

It functions just like an ai, ais or af non g lens. I'm also considering one, let us know if you get it. Here's a review: http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/46479-review-samyang-85mm-f1-4-aspherical-if.html

Frank Skomial , Jun 09, 2011; 03:07 a.m.

There are at least 4 vital camera/flash/software operating functions that define incredible accuracy and consistency of pictures that depend on precise distance information provided by the lens to the camera.

Perhaps most of 3rd party lens vendors for Nikon cameras, notably Zeiss, do not provide distance information.

See if Samyang has it ?, but for the price of it, and optical quality, it is a good lens for many.

Ruslan Lavrentyev , Jun 09, 2011; 04:42 a.m.

Has anybody used it?

Leslie Cheung , Jun 09, 2011; 05:42 a.m.

Good luck focusing the lens @f1.4 manually on a DX:) Even on a FX, it's tough...

Andrew Garrard , Jun 09, 2011; 06:26 a.m.

The new version actually acts like AI-P. (Or at least, it's supposed to - the one I ordered had knackered electronics, behaving like AI-s, and I'm still awaiting a replacement.) That means it works exactly like an AF lens, except that it doesn't autofocus - you can control the aperture with the camera, use program mode and shutter priority, etc. At least that's what I'm told it's supposed to do; since my sample was broken it's hard to confirm. It definitely had a working aperture lever, though.

I believe there's an older version which doesn't have electronics, but still has an aperture lever. Effectively it's AI-s; you have to set the aperture on the lens, but the camera will stop down for you (you focus and meter with an open aperture). The Canon version (reviewed by photozone) has no electonic aperture handling, so you have to stop it down manually to shoot, in the style of Nikon lenses without aperture levers (which includes my Kiev tilt/shift - and, in fact, the Nikon tilt/shifts if you don't have a PC-E capable camera), but I think all Nikon mount versions have levers.

The test images I took before sending it back were reasonably sharp at the edges, the bokeh was smooth, and the LoCA wasn't as bad as I expected. If you're prepared to put up with manual focus I still think it's a good and cheap alternative to the Nikkors. I notice that DxO knows about this lens. F/1.4 shouldn't be too hard if you have a body with three-way in-focus indicators, like the F5/D3/D700 - or live view, of course.

Elliot Bernstein , Jun 09, 2011; 06:39 a.m.

"Good luck focusing" Actually manual focus is easy as the focus confirmation dot works. If you are using a camera with live view (and a tripod). live view magnification makes manual focusing extremely easy and accurate.

Jose Angel , Jun 09, 2011; 06:54 a.m.

Elliot, are you aware of this behaviour? I haven`t used the Samyang lens, but time later, I checked my D300 and still show the very same issue (notice that the original "test" was done with a D200).
It makes me think that the RF aid is not the ultimate solution for that harder to focus situations.

Leslie Cheung , Jun 09, 2011; 07:22 a.m.

It's tough focusing a 85mm f1.4 wide open manually. If you think that isn't the case, all power to you, Elliot.


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