Cylinder (~Anamorphic) Lens for Aldu35

Brett Erskine · March 23rd, 2004, 02:41 AM

Anyone else have some leads to cylinder (or cylindrical) lenses besides the links posted so far?

Nico Rostan · March 30th, 2004, 04:43 PM

No link but as i sais in another thread, we may have the possibility to have them properly made by an optic company for a very reasonable price (and more than that if theres a lot of people interested in) , and they can also do the grinding.

We just have to know EXACTLY, EVERYTHING that we need.

Nico

Louis Demontez · March 31st, 2004, 12:11 PM

I'll play my usual card:

http://www.knightoptical.co.uk/acatalog/Lenses.html

Although, I am confused as to where the cylinder lens would go. I would have though that it would go infront of the 35mm lens, so as to collect more image. I'm not sure how this would upset the depth of field, and I'm still un clear as to why this it isn't the best option.

Brett Erskine · April 3rd, 2004, 02:19 AM

Its the best idea to have the cylinder lens in front of the 35mm lens if your looking to make your lens have a even wider FOV and not just anamorphically squeezed. The problems is making it easily mountable to any given lens your hoping to use and also not having zoom thru problems. So for these reasons its probably better to use it after the GG.

Ari Shomair · April 8th, 2004, 11:36 AM

Is there any more research being done in this idea? Any non-custom sources for the lens?

Rob Hester · April 8th, 2004, 11:56 AM

Quote:

Is there any more research being done in this idea? Any non-custom sources for the lens?

I posted this info as a new topic thinking that this one was focused on making your own out of cylinder lenses

http://www.dvinfo.net/conf/showthrea...threadid=24244

Nicholi Brossia · April 8th, 2004, 02:05 PM

Century Optics makes a 58mm thread mount widescreen adapter that could be attached to the 35mm lens with a step-up ring. Its one of the cheaper, non-zoomable ones. Granted they're still pretty pricey, but at least its an option and/or influence for a homemade design.

Louis Demontez · April 8th, 2004, 10:13 PM

<<<-- Originally posted by Nico Rostan

We just have to know EXACTLY, EVERYTHING that we need.

Nico -->>>

This sums it up really

April 8th, 2004, 02:05 PM	#22
Nicholi Brossia Major Player Join Date: Jun 2003 Location: Oklahoma City, OK Posts: 389	Century Optics makes a 58mm thread mount widescreen adapter that could be attached to the 35mm lens with a step-up ring. Its one of the cheaper, non-zoomable ones. Granted they're still pretty pricey, but at least its an option and/or influence for a homemade design. __________________ Nicholi Brossia

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March 23rd, 2004, 02:41 AM	#16
Brett Erskine Major Player Join Date: Dec 2003 Location: Anaheim, CA Posts: 445	Anyone else have some leads to cylinder (or cylindrical) lenses besides the links posted so far?

March 30th, 2004, 04:43 PM	#17
Nico Rostan Tourist Join Date: Mar 2004 Posts: 4	No link but as i sais in another thread, we may have the possibility to have them properly made by an optic company for a very reasonable price (and more than that if theres a lot of people interested in) , and they can also do the grinding. We just have to know EXACTLY, EVERYTHING that we need. Nico

March 31st, 2004, 12:11 PM	#18
Louis Demontez Regular Crew Join Date: Mar 2004 Posts: 33	I'll play my usual card: http://www.knightoptical.co.uk/acatalog/Lenses.html Although, I am confused as to where the cylinder lens would go. I would have though that it would go infront of the 35mm lens, so as to collect more image. I'm not sure how this would upset the depth of field, and I'm still un clear as to why this it isn't the best option.

April 3rd, 2004, 02:19 AM	#19
Brett Erskine Major Player Join Date: Dec 2003 Location: Anaheim, CA Posts: 445	Its the best idea to have the cylinder lens in front of the 35mm lens if your looking to make your lens have a even wider FOV and not just anamorphically squeezed. The problems is making it easily mountable to any given lens your hoping to use and also not having zoom thru problems. So for these reasons its probably better to use it after the GG.

April 8th, 2004, 11:36 AM	#20
Ari Shomair Major Player Join Date: Dec 2003 Location: LA, California, USA Posts: 224	Is there any more research being done in this idea? Any non-custom sources for the lens?

April 8th, 2004, 10:13 PM	#23
Louis Demontez Regular Crew Join Date: Mar 2004 Posts: 33	<<<-- Originally posted by Nico Rostan We just have to know EXACTLY, EVERYTHING that we need. Nico -->>> This sums it up really