Step down ring for wide angle lens at DVinfo.net

Corey Williams · December 14th, 2007, 04:21 PM

I have a lens with a 82mm thread. I bought a 82mm to 72mm step down ring so that I could mount a 72mm wide angle lens with a 82mm front. When i zoom out wide i get the outer edges of the lens in frame. If i mounted a 72mm wide angle lens with a 105mm front, would I still get black edges around the corners of the frame.

thanks

David W. Jones · December 14th, 2007, 05:00 PM

Why not get a proper 82mm mount wide angle for your lens and avoid your problems?

Corey Williams · December 15th, 2007, 10:56 PM

I only found one and it wasn't as wide as others that have a smaller diameter.

David W. Jones · December 16th, 2007, 12:17 PM

Have you looked at the WCV-82SC for your camera?

Corey Williams · December 16th, 2007, 09:05 PM

I've looked into it. I was looking for something that would give me more range. I've been shooting a lot of real estate videos in tight spaces. I wanted to get the most in a shot that i could. I noticed that some of the 72mm converters can give you a .4 or .5 I think the WCV-82SC gives a .8

Jim Andrada · December 17th, 2007, 09:57 PM

I think the black ring might be coming from the step down ring itself and would be there regardless of what you screwed into the front of it - have you checked to see if you get the black fringe with only the step down ring on the lens? That would make it crystal clear if the problem is what I think or not.

Chris Soucy · December 17th, 2007, 10:52 PM

Hmm, 82mm is a big thread. Probably not the range of lenses made for that size compared to 72mm.

Think you may have to get a camera with a 72 mm thread if you want a specific 72 mm W/A lens attachment.

Can't think of anything smaller than the original thread size which won't give you serious "cut off".

Something has to give: either the 72 mm W/A or the 82 mm thread lens.

Oh, the answer to your original question? Yes.

CS

Jim Andrada · December 17th, 2007, 11:59 PM

No idea how good it is, but I found the following 82mm WA adapter on the B&H site. No idea what "industrial" might mean in this context.

http://www.bhphotovideo.com/c/produc...rial_Wide.html

By the way, what camera are you using? If it has interchangeable lenses you might be able to get a wider angle lens (for a lot of $$$$$ unfortunately)

Corey Williams · December 18th, 2007, 01:58 AM

Thanks for the replies. I will purchase the cavision adapter. It's cheaper than the jvc adapter and gives a wider range. my camera is a jvc hd110u

Jim Andrada · December 18th, 2007, 02:28 AM

If I were you I might drop the B&H folks or CAVISION a line to find out exactly what they mean by "industiral". I see on the CAVISION web site that they have several different lens series. They also specifically show several adapters on the JVC

They also mention that it is not zoom through.

David W. Jones · December 18th, 2007, 08:09 AM

In my experience with the quality of filters from Cavision, I would avoid their glass like the plague.

Have you looked at the Fujinon Th13x3.5BRMU

Also.... http://dvinfo.net/conf/showthread.php?t=102486

Ryan Avery · January 2nd, 2008, 10:45 AM

Quote:

Originally Posted by Corey Williams

Thanks for the replies. I will purchase the cavision adapter. It's cheaper than the jvc adapter and gives a wider range. my camera is a jvc hd110u

Probably too late but we have the industry standard aftermarket accessory lenses for your camera. . .

http://www.schneideroptics.com/ecomm...=1085&IID=1367

Ryan Avery
Schneider Optics

December 14th, 2007, 04:21 PM	#1
Corey Williams Regular Crew Join Date: Jul 2007 Location: McKinney,TX/New Orleans, LA Posts: 104	Step down ring for wide angle lens I have a lens with a 82mm thread. I bought a 82mm to 72mm step down ring so that I could mount a 72mm wide angle lens with a 82mm front. When i zoom out wide i get the outer edges of the lens in frame. If i mounted a 72mm wide angle lens with a 105mm front, would I still get black edges around the corners of the frame. thanks

December 17th, 2007, 10:52 PM	#7
Chris Soucy Inner Circle Join Date: Feb 2007 Location: Fairfield, Dunedin, New Zealand Posts: 3,682 Images: 18	Hi Corey......... Hmm, 82mm is a big thread. Probably not the range of lenses made for that size compared to 72mm. Think you may have to get a camera with a 72 mm thread if you want a specific 72 mm W/A lens attachment. Can't think of anything smaller than the original thread size which won't give you serious "cut off". Something has to give: either the 72 mm W/A or the 82 mm thread lens. Oh, the answer to your original question? Yes. CS

December 14th, 2007, 05:00 PM	#2
David W. Jones Trustee Join Date: Dec 2006 Location: Little Rock Posts: 1,383	Why not get a proper 82mm mount wide angle for your lens and avoid your problems?

December 15th, 2007, 10:56 PM	#3
Corey Williams Regular Crew Join Date: Jul 2007 Location: McKinney,TX/New Orleans, LA Posts: 104	I only found one and it wasn't as wide as others that have a smaller diameter.

December 16th, 2007, 12:17 PM	#4
David W. Jones Trustee Join Date: Dec 2006 Location: Little Rock Posts: 1,383	Have you looked at the WCV-82SC for your camera?

December 16th, 2007, 09:05 PM	#5
Corey Williams Regular Crew Join Date: Jul 2007 Location: McKinney,TX/New Orleans, LA Posts: 104	I've looked into it. I was looking for something that would give me more range. I've been shooting a lot of real estate videos in tight spaces. I wanted to get the most in a shot that i could. I noticed that some of the 72mm converters can give you a .4 or .5 I think the WCV-82SC gives a .8

December 17th, 2007, 09:57 PM	#6
Jim Andrada Inner Circle Join Date: Feb 2007 Location: Tucson AZ Posts: 2,211	I think the black ring might be coming from the step down ring itself and would be there regardless of what you screwed into the front of it - have you checked to see if you get the black fringe with only the step down ring on the lens? That would make it crystal clear if the problem is what I think or not.

December 17th, 2007, 11:59 PM	#8
Jim Andrada Inner Circle Join Date: Feb 2007 Location: Tucson AZ Posts: 2,211	No idea how good it is, but I found the following 82mm WA adapter on the B&H site. No idea what "industrial" might mean in this context. http://www.bhphotovideo.com/c/produc...rial_Wide.html By the way, what camera are you using? If it has interchangeable lenses you might be able to get a wider angle lens (for a lot of $$$$$ unfortunately)

December 18th, 2007, 01:58 AM	#9
Corey Williams Regular Crew Join Date: Jul 2007 Location: McKinney,TX/New Orleans, LA Posts: 104	Thanks for the replies. I will purchase the cavision adapter. It's cheaper than the jvc adapter and gives a wider range. my camera is a jvc hd110u

December 18th, 2007, 02:28 AM	#10
Jim Andrada Inner Circle Join Date: Feb 2007 Location: Tucson AZ Posts: 2,211	If I were you I might drop the B&H folks or CAVISION a line to find out exactly what they mean by "industiral". I see on the CAVISION web site that they have several different lens series. They also specifically show several adapters on the JVC They also mention that it is not zoom through.

December 18th, 2007, 08:09 AM	#11
David W. Jones Trustee Join Date: Dec 2006 Location: Little Rock Posts: 1,383	In my experience with the quality of filters from Cavision, I would avoid their glass like the plague. Have you looked at the Fujinon Th13x3.5BRMU Also.... http://dvinfo.net/conf/showthread.php?t=102486