Recent content by scuba-s

I use my canon 7D mainly for underwater photography i have the tonkina 10-17 for wide and canon 60mm for macro and the sigma 17-70 for a bit of both i also have the 18-55 and the 55-250 from my last camera which are not much chop, am looking at traveling to Zealand next year, used the 17-70 last...

is that the auto port you have or the maunual port with the manual adjustment i have a friend with the manual port and it is very tight fit i am looking at the (auto )only port /

i have found out that the canon 500d diopter makes the 100mm macro 12mm longer when screwed in, the next size up in lenght in the standard auto only port is 10mm now i need to know if there is anyone out there that has the canon 100mm standard auto only port and how much space there is...

ikelite has told me that i can use a standard port longer then the one used for the 100mm without it affecting picture quality i need to know how long the diopter is so i can get the right one, the next size up is 1cm longer then the next is 2.5cm longer steve

i am looking at getting the Canon 500D achromatic close up lens for a canon 100mm 2.8 usm lens(not the hybrid) and would like to know from someone who has one what the lenght of the diopter is from the start of the thread to the front rim of the diopter, i have an ikelite housing and canon 40d...

i am looking at getting the Canon 500D achromatic close up lens for a canon 100mm 2.8 usm lens(not the hybrid) and would like to know from someone who has one what the lenght of the diopter is from the start of the thread to the front rim of the diopter even better if someone has the 100mm and...

currently have the cannon 60mm but would like to have more magnification ,i am looking at the canon 100mm,not being an expert by no means but if i stood off from the subject the same distance i would with the 60mm to get 1:1 with the 100mm would i not get more then 1:1 with the 100mm at the same...

http://www.flickr.com/photos/29843279@N08/ some taken with a canon a630 P&S and most with a canon 40d in ikelite housing and ds 125 &160 strobes with either tonkina 10-17 or sigma 17-70 or canon 60mm