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Wide angle Lenses with focal lengths shorter than 14mm.

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  #31  
Old 10th August 2019
Harold Gough Harold Gough is offline
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Re: Laowa 7.5mm f2.0

One easy For lenses with a DOF scale between focusing ring and the aperture ring, set the ∞ level with the mark for your selected f No marking.

Harold
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  #32  
Old 11th August 2019
Snookerman Snookerman is offline
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Re: Laowa 7.5mm f2.0

Yes, I agree, harold.

On holiday in Norway, I set the focus at a spot roughly half way between 0.5m and infinity. I did this becuase I read an article that advised this. I had not time to test the lens before I went away as it arrived just a few days before. I found that the far distance was a little murky - certainly not sharp. I have since tried focussing on infinity, just before infinity and just after infinity and all these work better, though infinity itself seems best.
I then find that anything not closer than about a metre seems in perfect focus. I am still not sure if the lens is as sharp as I want, but that's becuase I have yet to test it properly in ideal conditions - I have had murky weather which doesn't help!
Interesting isn't it, because one expects a super wide angle at f5.6 and above to be in focus whether you set the focus at infinity or between that and 0.5 due to DoF...but this was not the case.
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  #33  
Old 11th August 2019
Harold Gough Harold Gough is offline
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Re: Laowa 7.5mm f2.0

I have just come back from a local "classic car" morning and I took a lot of shots with the 7.5mm.

It might be quite a few days before I process them. I think they include the rear end of a Jensen Interceptor.

I used focus peaking quite a lot.

Harold
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  #34  
Old 12th August 2019
Harold Gough Harold Gough is offline
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Re: Laowa 7.5mm f2.0

Sunbeam Through Laowa 7.5mm

This car (I didn't get full details) was at a Classic Car event yesterday. I had mixed result with the lens, mostly because I very rarely use ultra wide angle lenses. I used focus peaking for the more successful ones.

OK, it was in a pub car park but the slight tilt was not due to alcohol.

The stereo is crosseye.

Olympus EM-1, aperture priority, Laowa 7.5mm f2 macro, 1/400 at f11, hand-held.

Harold



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