Sigma 50mm 1.4 soft?

Started Apr 21, 2013 | Discussions thread
Aidan Gibson
Forum MemberPosts: 98Gear list
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Re: Sigma 50mm 1.4 soft?
In reply to Infrabasse, Apr 22, 2013

I had one and could get sharp pictures but it's obviously a little tricky @ 1.4 but a bit hit and miss.

Is this because of the narrow DOF? If yes then I thought of this and that would also explain why it starts to get sharp a f2.

Make sure you do your tests with a static subject and with a tripod as you or your subject may be rocking slightly back and forth.Please note you also have a global lens adjustment which cumulated with the individual lens adjustment could allow you to adjust the equivalent of -20;0 or 0;+20. Although that will probably induce issues with your other glass.

Could you explain how I "access" this global lens adjustment? Does this mean it would stay adjusted on any lens?

As above, It'd be interesting to know if you can get sharp pictures in live view.

Again yes they are in focus but mostly pretty soft.

Do you find the lack of sharpness is more pronounces on a specific side?

Haven't noticed any sharper side.

Cheers

 Aidan Gibson's gear list:Aidan Gibson's gear list
Pentax K-x Pentax K-5 IIs Sigma 50mm F1.4 EX DG HSM Pentax smc DA 55-300mm F4.0-5.8 ED Sigma 30mm F1.4 EX DC HSM +2 more
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