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Will_Clark

Member Since 30 Dec 2007
Offline Last Active May 23 2012 01:27 PM

Topics I've Started

Canon 8-15mm fisheye and teleconverters

17 May 2012 - 05:45 AM

I've just taken receipt of the new Canon 8-15mm lens. Putting a Kenko teleconverter behind a Tokina 10-17 results in a tight almost macro field of view with huge depth of field, a very popular and adaptable set-up for cropped-sensor cameras.

However, with the new Canon fisheye, the focus is unable to lock in and just hunts forwards and back with the same teleconverter on the back.

Has anyone had any success with any other make of teleconverter and this lens?

New Zealand u/w photo dreams

02 February 2012 - 02:54 PM

I need to go to New Zealand on business and would like advice on where I might dive while I'm there, and when the best time for that might be.

Any advice please?

Z240 o-rings want to pop out when screwing the cover back down

16 August 2011 - 03:27 AM

I'm new to using Inon 240s. When I change the batteries and come to screw the cover back down, the o-rings always seem to want to pop out a bit in a curl. I've already changed 2 in 3 weeks for fear they are getting stretched... does this happen with yours? Any hints?

Micro adjustment for AF

09 July 2011 - 01:11 PM

I have never been that happy with my Canon 60mm macro lens... until now.

It always seems a 'bit soft' on my Canon EOS 40d. Now I am the proud owner of a 7d, I just spent a few hours playing with the micro adjustment facility.

I followed this advice: http://www.birdphoto...justment-tricks
but I performed the procedure at many different distances from the lens to the target. 25-50x the focal length distance is recommended by some sources, but I found it more useful to do it at more 'real world' distances for my macro lenses.

Both that 60mm and my Canon Macro 100mm IS L lens benefited from  tweaks, and I recommend giving it a go.

**edit
I didn't use his mirror method, I used a hot-shoe spirit level and moved the target into place on a well-lit wall instead.

Insurance for our gear- specialist or general?

17 June 2011 - 03:38 AM

This question is mostly aimed at UK photographers as that is where I am from and these matters will be based on where we live.

I have met a few people who have said that they consider specialist underwater photography gear insurance unnecessary as they would claim on their home insurance if something was lost or damaged on a trip. This doesn't sound right to me, but insuring gear can be very expensive indeed. I've got a superior travel insurance package for my forthcoming trip that has a high 'personal effects' section, but with a limitation per item. My housing's worth is above this, for example.

What strategies to limit financial risk do you employ for your gear?

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