Low Cost Prime Lenses for HD Cameras at DVinfo.net

Petr Marusek · January 9th, 2006, 07:30 AM

I think that you can buy adapters for various lens mounts, or at least for Canon SLR lens mout. So you can use 35 SLR lenses for telephoto applicatiomns. For normal and wide angle you can get industrial high def lenses. I think that Pentax, Schneider, Rodensack? (German company), Tamron, and others probably make them. YCheck these lenses, F1.4, FL 8-25 mm, $175-195 each:
http://www.edmundoptics.com/onlineca...productID=2411
Quality discount could be negotiated. Adapters from C-mount to Canon or other mounts should be available from Edmund Optical, other companies, or someone could machine them.

Tony Davies-Patrick · January 9th, 2006, 09:16 AM

Has anyone actually tried these Edmund Optics fixed prime lenses on a HD camera? I have some doubts that a new lens selling for $175 would do the job...maybe I'm wrong. If you are correct, surely many that wanted a better lens than the Canon X3 zoom, would have jumped on lenses like these to use on the XL line of camcorders long ago?

Shannon Rawls · January 9th, 2006, 09:56 AM

Seems nice. I would defer to Graeme Nattress for wisdom on these. When it comes to optics, he's who I trust.

- ShannonRawls.com

Alister Chapman · January 9th, 2006, 09:58 AM

I doubt you will be able to use the edmund optics lenses as the focal plane will may be too close the the lens rear element. These lenses are designed for single CCD cameras that have the sensor very close to the lens mount. Any 3CCD camera has sensors that are in effect further back due to the light path through the prism. I could be wrong though.

Johan Forssblad · January 9th, 2006, 02:38 PM

Quote:

Originally Posted by Alister Chapman

... 3CCD camera has sensors that are in effect further back due to the light path through the prism. ...

Anybody who knows where the focal plane is measured from the lens mounting flange, please make yourself heard!

A. J. deLange · January 9th, 2006, 03:36 PM

Yes, it's about 36 mm. This was deduced by looking up the back focus distance of a Nikon lens and subtracting the thickness of the XL2 Nikon lens adapter from it. Clearly it has to be the same for the Xl-H1.

January 9th, 2006, 07:30 AM	#1
Petr Marusek Major Player Join Date: Dec 2005 Posts: 155	Low Cost Prime Lenses for HD Cameras I think that you can buy adapters for various lens mounts, or at least for Canon SLR lens mout. So you can use 35 SLR lenses for telephoto applicatiomns. For normal and wide angle you can get industrial high def lenses. I think that Pentax, Schneider, Rodensack? (German company), Tamron, and others probably make them. YCheck these lenses, F1.4, FL 8-25 mm, $175-195 each: http://www.edmundoptics.com/onlineca...productID=2411 Quality discount could be negotiated. Adapters from C-mount to Canon or other mounts should be available from Edmund Optical, other companies, or someone could machine them.

January 9th, 2006, 09:16 AM	#2
Tony Davies-Patrick Trustee Join Date: Feb 2005 Location: Worldwide Posts: 1,589	Has anyone actually tried these Edmund Optics fixed prime lenses on a HD camera? I have some doubts that a new lens selling for $175 would do the job...maybe I'm wrong. If you are correct, surely many that wanted a better lens than the Canon X3 zoom, would have jumped on lenses like these to use on the XL line of camcorders long ago? __________________ www.WILDCARP.com www.NIKON.me.uk

January 9th, 2006, 09:56 AM	#3
Shannon Rawls Major Player Join Date: Nov 2003 Location: Los Angeles, California Posts: 853	Seems nice. I would defer to Graeme Nattress for wisdom on these. When it comes to optics, he's who I trust. - ShannonRawls.com __________________ Shannon W. Rawls ~ Motion Picture Producer & huge advocate of Digital Acquisition.

January 9th, 2006, 09:58 AM	#4
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	I doubt you will be able to use the edmund optics lenses as the focal plane will may be too close the the lens rear element. These lenses are designed for single CCD cameras that have the sensor very close to the lens mount. Any 3CCD camera has sensors that are in effect further back due to the light path through the prism. I could be wrong though. __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

January 9th, 2006, 03:36 PM	#6
A. J. deLange Major Player Join Date: Jun 2004 Location: McLean, VA United States Posts: 749	Yes, it's about 36 mm. This was deduced by looking up the back focus distance of a Nikon lens and subtracting the thickness of the XL2 Nikon lens adapter from it. Clearly it has to be the same for the Xl-H1.