19th May 2004, 12:43 AM
question on close-up +4
Hello guys, i wish to ask. if i wish to get a close-up filter/lens, is there a difference between fit like this
TELE | close up | camera
Close up | Tele | camera
will the min focus distance be different. Also, just to reduce the min focus distance, will a macro lens be better.
my purpose is to get a sharp focus with maximum zoom at min distance.
19th May 2004, 12:51 AM
yes there will be a difference, though I can't tell you now which will give you higher magnification or larger working distance. If you are really interested, you can just buy and test it out yourself..
19th May 2004, 01:08 AM
thanks, but due to different diameter before and after TELE, i can't play with money like that.
Originally Posted by justarius
i was thinking, is it count like this = camera min % (divide) 4 + tele min
IF i put the lens between TELE and camera.
actually i just look for simple answer, which can get me the shortest distance.
also, IF i looking to magnify the image, got any way? must have reasonable bokeh and NON soft (eg. reverse 50mm). i'm quality crazy.
Last edited by normanlai; 19th May 2004 at 01:15 AM.
19th May 2004, 01:23 AM
The actual formula is as follows:
magnification = focal length of camera lens / focal length of diopter
focal length of diopter = 1000 / diopter power
Are you using an SLR? If so you have lots more options to do macro photography. You can use extension tubes (gives higher magnification with short lenses), diopters (gives higher magnification with longer lenses), teleconvertors, reversing rings, bellows, etc.
If you are 'quality crazy', best quality of course comes from a dedicated macro lens, but if you are just trying out, getting a diopter first is a good move. Try to get the 2 element diopters from either Canon (500D) or Nikon (5T, 6T); the quality is much better.
19th May 2004, 09:43 AM
Hmmm... do tele have threads? I recall that my old TCON17 doesnt have any filter threads.
19th May 2004, 09:49 AM
Yeah I'm curious too on how you are going to put the +4 filter between the camera and the tele.
Originally Posted by NiVleK
19th May 2004, 09:59 AM
Huh ??? a closeup lens between a Camera and Tele lens? How on earth did you achieve that?
Originally Posted by normanlai
Anyway, if you put a close up lens infront of your tele-lens, the minimum focus distance will remain the same. However, if you use an extension tube between the camera and tele-lens, the minimum focus distance will change.
If you want to get maximum zoom at min distance, get an extension tube .... the distance will be ridiculously ..... short
A Marco lens will be better, of course, they are designed to do that.
19th May 2004, 10:05 AM
Last edited by blurblock; 19th May 2004 at 10:11 AM.
19th May 2004, 10:10 AM
19th May 2004, 10:11 AM
I think he mean Tele-Lens not Teleconvertor
Originally Posted by NiVleK
19th May 2004, 10:35 AM
19th May 2004, 11:08 AM
Apparently, Normanlai is using a prosumer camera..
Yes, Camera -> closeup filter -> TC should work.HERE
19th May 2004, 11:15 AM
Thanks Sgt. Pepper.. thats was a useful info.. I didnt think about the prosumer cams.. I assumed it to be a SLR.. unconscios bias..
19th May 2004, 04:10 PM
I too thought he was using a digicam at first, but then he asked about reversing a 50mm lens, which lead me to think he was using an SLR...
19th May 2004, 10:29 PM