Which wide-angle lens to get?

[Adrian Wong]

Originally Posted by Chai

Sharpness is good with Tokina, and DoF is not really a big issue at wide angle. As long as you can still see something. That's why you need D3, ISO25600!

Ahhh... No thank you, the price tag is way beyond my means. I will stick with the D300 and ISO 800-1600.

[Falcone]

Well unless you are seriously getting FF in the future, I would not recommend 14-24. Pricing is one, the other thing is the front elements doesn't support any filter. I use a lot of filter when doing landscape so is a big issue to me.

[Adrian Wong]

Originally Posted by Falcone

Well unless you are seriously getting FF in the future, I would not recommend 14-24. Pricing is one, the other thing is the front elements doesn't support any filter. I use a lot of filter when doing landscape so is a big issue to me.

Hmm.. What filters do you use, other than circular polarizer?

Yeah, I don't think the 14-24mm is suitable for DX cameras. Seems like a real waste.

[goldfries]

Originally Posted by Chai

Sharpness is good with Tokina, and DoF is not really a big issue at wide angle. As long as you can still see something. That's why you need D3, ISO25600!

normally my preference of wider aperture is only for bokeh and certain low-light stuff.

for UWA + low-light, i'll be using tripod.

what think is nice about the Tokina 11-16 is not so much of the wide aperture but the constant aperture.

[Adrian Wong]

Originally Posted by goldfries

normally my preference of wider aperture is only for bokeh and certain low-light stuff.

for UWA + low-light, i'll be using tripod.

what think is nice about the Tokina 11-16 is not so much of the wide aperture but the constant aperture.

Well, same thing right? Basically wider aperture throughout the zoom range.

Then again, it's not much of a zoom. Only 11-16mm... On a Nikon DX camera, that's 16.5mm to 24mm.

The Sigma 10-20mm is slightly wider (1mm), and has a much wider range.

[sherren]

I'll say the Siggy 10-20mm

[goldfries]

Originally Posted by Adrian Wong

Well, same thing right? Basically wider aperture throughout the zoom range.

Then again, it's not much of a zoom. Only 11-16mm... On a Nikon DX camera, that's 16.5mm to 24mm.

The Sigma 10-20mm is slightly wider (1mm), and has a much wider range.

oh. what i'm saying is that i'm not so much attracted by the wide aperture (eg f2.8) but i like that it can have constant aperture.

if i go at 16 also i still can have it at say f4. which unlike the siggy 10-20, at 20mm it drops to f5.6. that's quite a fair bit of light reduced compared to f4.0, shutter also have to be 50% slower.

[peaz]

Hmm is the tokina really that sharp?
http://images35.fotki.com/v1169/file...IMG_967001.jpg

Saw a sample at f2.8. don't look all that sharp. But at the price of the Tokina's i suppose it's bareable

Anyways, at 11mm, DOF at f2.8 should be fine and not be worried about.

Online Depth of Field Calculator - do your own calculation
11mm at f2.8

Subject distance 30 cm
Depth of field
Near limit 26.4 cm
Far limit 34.7 cm
Total 8.26 cm

In front of subject 3.57 cm (43%)
Behind subject 4.69 cm (57%)

Hyperfocal distance 215 cm
Circle of confusion 0.02 mm


Subject distance 1 m
Depth of field
Near limit 0.68 m
Far limit 1.86 m
Total 1.18 m

In front of subject 0.32 m (27%)
Behind subject 0.86 m (73%)

Hyperfocal distance 2.15 m
Circle of confusion 0.02 mm

[Adrian Wong]

Looks quite blur at the corners, but then again, it's not a really good shot, with the center aimed at bright sunlight. Cannot really tell how sharp it is at the center.

[Falcone]

Originally Posted by Adrian Wong

Hmm.. What filters do you use, other than circular polarizer?

Yeah, I don't think the 14-24mm is suitable for DX cameras. Seems like a real waste.

ND and ND Grad filters.