WA lenschoise again

Hi Chris,

Since you already have the 12-24, I recommend you get the 10.5. You don't usually need fast AF for wide angle, and even the slower lenses are pretty fast (because they are small, not a lot of glass to move). Also, the 12-24 at about 13mm will give results very similar to the Sigma 15mm fisheye. The 10.5 on the other hand is a very different (and complimentary) lens.

Luiz

If anyone doubts the ability of the 10.5 to focus right on the actual dome itself, this is a record of an accidental collision with a manta. The manta is actually on the dome in the darkened portion in the right center of the frame.

We'd been swimming parallel for a couple of minutes and I was sure that the manta realized where I was when it suddenly turned towards me. I was looking through the viewfinder while swimming, and the last thing I saw was ... this.

The collision shook me up a bit, and I was worried that the animal might have been injured or frightened, but it seemed that no harm was done. The shooting session with this very friendly animal continued for another ten minutes or so, but I can hardly claim this incident as a testimonial for low-impact diving.

One interesting thing to come out of taking this otherwise useless image was learning that the skin of a manta is sort of like a golf ball, presumably for the same reasons. The tiny bumps, like the dimples on a golf ball, probably induce vortex shedding and thus reduce drag. Another was realizing that some subjects that can be too big - or too close - even for the 10.5!

Frogfish

Date/Location: March 2005, Komodo National Park. Fuji S2Pro w/ 10.5 mm, 1/125 @ f/8.

The 15mm should give sharp corners - a good choice I'd say.

<{POST_SNAPBACK}>

I like Sigma 15mm FE, it focus close and is very sharp with 8" dome port.

It will give you a little bit more FOV with nikon 1.5x sensor.

Regards. Fabio