If you need a teleconverter on all your lenses, would you not be better off shooting with a crop camera ?
My Kenko teleplus 1,4 converter has exactly the same type number as the tamron telconverter you are mentioning, so there might be something in it that they are the same. At my camera (canon70D) the displayed f stop does take the converter to account. Also in the exif, the focal length is adapted. I think it is odd that the info is displayed and adjusted in my camera and not in yours.
when I use it with my f2.8 USM 100mm macro (not the L lens), I have to take care to avoid using microfocus adjust. for some reason, the camera will lock up (or just not release the shutter) if I use this combination (100mm, teleconverter + microadjust). If it is working, it is reasonably fast.
If you would use a teleconverter and a diopter together, you need a good focus light, or be probably better off prefocussing at 1:1 and shooting when the image is sharp in the viewfinder.
The canon teleconverters are really only aimed at the longer lenses, and wont work with wide angle and macro lenses (although they would match up nicely with your 70-200mm )
Posted by Cerianthus
on 09 November 2016 - 06:56 AM
Its a special gemeente (council), so yes.... and now, you're right on the mission.
A nice joke on this is the underwater photographer who says on his deathbed 'dont sell all my uw gear for the price i told you it costs'
Vinkeveen is allright as a freshwater dive, but Zeeland is really nice, and it is not always raining here like in Manchester (my wife is british and lived there). If you ever feel the need (maybe when its warmer again), give me a PM....
I dont know what remote slaves Alex uses, but the ikelite ones are quite sensitive. Also possible to use an extension cord to increase the distance. I picked 2 old ones up on ebay . Played around on one dive last year. The regular little bit of cord is about 50-60 cm (2 foot), but you can use an extension. Only works with ikelite strobes though.
Posted by Cerianthus
on 28 November 2015 - 12:05 PM
depends, if you dive often in low viz, and also are interested in fish portrait etc, then the 60mm would be better (shorter focus distance, less water and gunk in between). In clear water the 100m gets more interesting... check if the sigma 105 mm has internal focus (otherwise there might be a length difference between infinity and close focus.... (in the end, get both the 60 and 100 mm :-)