Musoman
PETE - Nikon/Sony Shooter
I decided to cut down the length of the engineerd alloy tube i used on my previous scope, because its a bit awkward to use
So with that cut down, i need to use an extension tube for close focus, so tried out both my AF chipped set, and a non chipped tube
The AF set with contacts is pretty useless when using all 3 tubes, because the slack is terrible. I can move everything so decided to only use the 36mm tube
I got vignetting with this AF chipped 36mm tube
I then decided to swop this for the manual / non chipped Jessops 31mm single tube.
I got vignetting with this too.
I know it doesnt matter too much in the great scheme of things, since all photos will be cropped down, but i was surprised at the vignetting.
I've now bought some of the cheap threaded type, just to check if these vignet as well. I wont know for a while as they're being posted from Hong Kong ( £4 ...very cheap ! ! )
On another issue, i notice that i need - 1EV to compensate for the over exposure. - 1EV seems to be about right after some experimentation
So with that cut down, i need to use an extension tube for close focus, so tried out both my AF chipped set, and a non chipped tube
The AF set with contacts is pretty useless when using all 3 tubes, because the slack is terrible. I can move everything so decided to only use the 36mm tube
I got vignetting with this AF chipped 36mm tube
I then decided to swop this for the manual / non chipped Jessops 31mm single tube.
I got vignetting with this too.
I know it doesnt matter too much in the great scheme of things, since all photos will be cropped down, but i was surprised at the vignetting.
I've now bought some of the cheap threaded type, just to check if these vignet as well. I wont know for a while as they're being posted from Hong Kong ( £4 ...very cheap ! ! )
On another issue, i notice that i need - 1EV to compensate for the over exposure. - 1EV seems to be about right after some experimentation