A80+ TCon Question

[Whitesand]

Hi,

I just wish to ask if this normal:

I have a TCON Olympus C180 (1.7X) that come with my old Olympus IS200, thread size is 52 mm, which fix nicely with my A80 with adaptor. However, I discover that the image was partially blocked when the TCON is fitted when not fully zoomed. I can see that the round black things that block image from LCD, it will only go away when the lens is fully extended.

I wonder is this normal? Or if the same will happen with other TCON on my A80 if I will to change (to say Vitalcon?).

Thanks for advising in advance.

 

[tunster]

Even the original Canon TCon also got the dark corner problem. Maybe you can try some third party one will give you better result. Tried GroBartiG one have no problem

 

[imaginary_number]

Yes, it's normal - it's called vignetting btw. I read that the vitacon ones degrade image quality considerably, so I wouldn't really consider them.

 

[imaginary_number]

Btw, if vignetting occurs even at full zoom, then that TC isn't really suitable for your cam.

 

[sinlg]

Saw a website in the US that sell 37mm adaptor which is superior to Canon's 52mm version.

www.lensmateonline.com

anyone with experience with it would like to comment? :what: