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C740/C750 owners - Minimum focus distance for TCON17? (1 Viewer)
- Thread starter mipettin
- Start date
jeff
Well-known member
mipettin said:
I guess there must be a minimum distance, you don't really say how close you were, but i find with the FUJI camera and Teleconverter i need a bit of light before i get a good focus lock at full zoom, so i just knock the zoom back a bit and it's ok. I guess manual focus would get round the problem, but how close is close?
RAH
Well-known member
I agree that low light affects auto-focus, but the TCON-17 does not lower the light coming in, at least if you believe what Olympus says, plus it seems that way when I use it (yes, this is different from the way teleconverters behave that mount between the camera and the lens). For example, if I try a shot without the TCON-17 and the camera sets itself at say F3.5 and shutter speed 100, if I then put the converter on, it still picks the same settings.
I believe that the C-7x0 cameras use verticle objects to focus on. If there is no strong verticle objects in the scene, that may be causing the problem.
Also, you can zoom back some with the TCON-17 mounted without getting fringing. You may be able to get it to focus if you just zoom back a little.
Rich
I believe that the C-7x0 cameras use verticle objects to focus on. If there is no strong verticle objects in the scene, that may be causing the problem.
Also, you can zoom back some with the TCON-17 mounted without getting fringing. You may be able to get it to focus if you just zoom back a little.
Rich
IanF
Moderator
I use the Tcon 17 and for that matter the Tcon 14 with an Olympus C2100UZ.
The Tcon 17 alone doesn't affect the amount of light entering the camera, in fact it seems to boost the light levels. However it does reduce the minimum focus distance. The C2100UZ will focus down to 39" on it's own, but this increases to about 50" with the Tcon 17 added - at max optical zoom.
In these circumstances I'd be inclined to give the manual focus ago try out.
The Tcon 17 alone doesn't affect the amount of light entering the camera, in fact it seems to boost the light levels. However it does reduce the minimum focus distance. The C2100UZ will focus down to 39" on it's own, but this increases to about 50" with the Tcon 17 added - at max optical zoom.
In these circumstances I'd be inclined to give the manual focus ago try out.
If you keep the macro setting on at all times in the P mode and ASM mode, you can focus pretty close in those settings using the converter. If I find myself too close to focus in the other preset modes, I usually quickly switch to the P or ASM mode.
bigbadja
Well-known member
My optics [C700] are the same as yours and with the Tcon-17 I can focus from about 5m [ about 16' for imperialist poms still living in the past].
I think you will find that your 10x zoom on the camera alone serve you well up to this distance anyhow. I do most of my shooting on auto as it is smarter than I am for everyday use. I only go manual when I want to control specific needs.
Good luck
Robert [who has just discovered a family "First Fleet" convict heritage.
I think you will find that your 10x zoom on the camera alone serve you well up to this distance anyhow. I do most of my shooting on auto as it is smarter than I am for everyday use. I only go manual when I want to control specific needs.
Good luck
Robert [who has just discovered a family "First Fleet" convict heritage.
