Go Back   Steve's Digicams Forums > Digicam Help > Add-On Lenses

Reply
 
Thread Tools Search this Thread
Old Mar 13, 2003, 12:06 PM   #1
Junior Member
 
Join Date: Mar 2003
Posts: 1
Default Nikon Coolpix 5000 Converter

Does the lense converters for the Nikon Coolpix support other lenses such as
http://www.nikonusa.com/usa_product/...ductNr=1987NCP
?
Xenon is offline   Reply With Quote
Sponsored Links
Old Mar 15, 2003, 10:02 PM   #2
Senior Member
 
Join Date: Oct 2002
Posts: 579
Default Re: Nikon Coolpix 5000 Converter

Quote:
Originally Posted by Xenon
Does the lense converters for the Nikon Coolpix support other lenses such as
http://www.nikonusa.com/usa_product/...ductNr=1987NCP
?
The indicated lens is designed for Nikon SLR use and cannot be used on any lens converters for Coolpix 5000. The reason is that front-mount lens converters are the so-called AFOCAL system that project an image of the subject to the on-camera lens. Incoming parallel rays of an afocal system will be sent out in parallel, although the bundle of the rays changes. Therefore, afocal systems DO NOT have focal point (or their focal points are at infinity). On the other hand, a SLR lens FOCUSES the incoming rays on the film or image sensor plane and must have focal points.

However, you CAN use a SLR lens on a lens converter using reverse-mounting. In this way, you have a reasonably good macro system. To do so, the on-camera lens, with lens converters possibly, must have a focal length equal to or larger than the SLR lens. For example, the Coolpix 5000 lens has the maximum focal length 21.4mm. Adding the TC-E2 2X converter will make the combo to have a focal length of 2*21.4 = 42.8. If you reverse-mount a SLR lens of focal length x, the magnification is 42.8/x. For example, if the 60mm Micro Nikkor is used, the magnification is 42.8/60 = 0.7X. If you use a 50mm normal lens instead, the magnification is 42.8/50 = 0.86X which is higher than that of the micro Nikkor.

Another possible use is to add a scope converter to the micro Nikkor making it a 60/10 = 6X scope. Then, digiscoping technique can use this scope along with your 5000 making the combined focal length about 21.4*6 = 128.4mm (504mm, 35mm equivalent).

Hope this answers your question.

CK
http://www.cs.mtu.edu/~shene/DigiCam
Nikon Coolpix 950/990/995/2500/4500 user guide
shene is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 11:57 AM.