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Hi Guys.

Just want to hear some opinions on this lens. Last night I was out and shooting at f/22, I manually focused at about 50cm (at 12mm). I'm pretty sure that at that aperture and focal length then focusing at 50cm should give everything in focus. The resulting shot was quite soft. Certainly a lot softer than at f/11. I know that lenses do deteriorate in quality when you close the aperture down a lot, but this is very noticable.

Any similar experiences?

Cheers,
Owen.

Hmmmm I have had this lens for almost a week now..

Will try it and let you know.

Its all about how light is diffracted on a cropped APS-C sized sensor (not full frame)

http://www.bobatkins.com/photography/te ... ction.html

On your Tokina (as with my 10mm Sigma) - I wouldn't go past f9. f11 only if I needed to

The DoF on lenses this wide at f9 is huge anyway

Trieu wrote:Hmmmm I have had this lens for almost a week now..

Will try it and let you know.

Trieu,
Go out and try shooting ducks tonight, you'll see what's his impressions

Appreciate the comments guys. Thanks for the link too pharmer, the sampleim ages in there pretty much represent what I experienced... but perhaps I managed to bump the tripod a little or something... more testing is required

Thanks guys.
Owen.

birddog114 wrote:

Trieu wrote:Hmmmm I have had this lens for almost a week now..

Will try it and let you know.

Trieu,
Go out and try shooting ducks tonight, you'll see what's his impressions

Ducks? Ummm am I missing some joke?

ducks and the sydney opera house... birdies favourite subjects.

owen wrote:ducks and the sydney opera house... birdies favourite subjects.

Yes, exactly!!!!!!

Oh.. I see.

I want to hit the town tonight to test some more shots with my new Tokina.. but my wife is getting abit annoyed with me spending too much time taking photo's....

Might have to get into Macro photography, that way I can take shots in the home

start taking LOTS of shots of your wife... then when you start to annoy her too much she'll tell you to go away, that's when you can go and do your thing outside

Owen, I never use my Sigma 12-24 past f8-f10. At that aperture virtually everything from the lens cap to infinity is in focus. It is asking a lot for a lens of this range to deal with diffraction as well. When I think about my 12-24, I always imagine there must be a prism or something similar inside to get such a wide angle at so cheap a price. A lens this wide used to be thousands of dollars, now they are the price of taking four people out to a high end restuarant.

owen wrote:start taking LOTS of shots of your wife... then when you start to annoy her too much she'll tell you to go away, that's when you can go and do your thing outside

Trieu,
You perhaps have to ask owen about his trick: getting Lisa into photography.
And you enjoy without any harrasment

Man... you older, ops... I meant wiser guys seem to know how to deal with this kinda thing in so many ways...

Tell me more!!!

No $5.50 chinese lunch specials up there Glen?

The reason I tried f/22 was because I Remember reading a hyperfocal chart which said that selecting that aperture and setting the focus distance to minimum meant you could get from 15cm in front to infinity... which is what I was trying to achieve.

http://www.dofmaster.com/dofjs.html

That chart tells me that at f/11 I can focus at 65 cm and have everything in focus from their to infinity. I think I'll only do that in the future.

Thanks very much.
Owen.

birddog114 wrote:You perhaps have to ask owen about his trick: getting Lisa into photography.

hehe it only took about 2 years. Are you a patient man Trieu?