Will an SDTV lens work on EX-3? at DVinfo.net

Steve Mitchell · January 24th, 2009, 07:12 PM

Found a good price on a Canon YH 19X6.7KRS SDTV 1/2 inch lens. Will I get a 16:9 image or 4:3?

Mark Angelos · January 24th, 2009, 10:39 PM

I was able to use a Fijunon 36X zoom effectively on my EX3. I used the ACM-21 1/2" to 2/3" adapater because it has a electronic connection unlike the ACM-18.

The SD lens worked fine and provided excellent quality footage.

Brian Cassar · January 24th, 2009, 11:34 PM

I do not think it's a wise idea to attach a SD lens to a HD camera. This week I did some side by side filming with my EX3 and a friend's Sony HDCAM which was fitted with a very good Fujinon SD 2/3 inch lens. The image from my EX3 totally outperformed the image of this HDCAM + lens combo with regards to sharpness and CA. Obviously the HDCAM then outperformed the EX3 with regards to latitude (but then it is to be expected from a much more expensive camera) although with some tweeking in post the pictures came really close!!.

I think that you would be reducing the overall image to the EX3. Also, there was another thread here where someone (I believe it was Alister Chapman, though I might be wrong) posted images from 3 different lenses - the stock lens a SD lens and a Canon HD lens and the results were striking. He found out that the SD degraded the picture while the stock lens stood well when compared to the Canon HD.

If you do not do a side by side comparison it might not be so apparent.

Alister Chapman · January 25th, 2009, 05:19 AM

The YH19x6.7 isn't too bad. I used one on my F350 until I was able to get my Canon KH20 HD lens. At least it's a 1/2" lens. You will find it softer than the stock lens but if you need the extra focal length it is IMHO just about acceptable. One thing I have noticed is that HD lenses seem to give higher contrast than SD lenses and this doesn't always show up on test charts etc.

There are bigger issues when trying to use 2/3" lenses on the EX as there is a miss-match in the prism size which is only partially corrected by the glass in the ACM-21. I would want to do some serious testing of the specific lens before using a 2/3" SD lens on an EX.

The differences in lenses only really show up when you view the footage on a big monitor. By big I mean 37" or larger. On a 50" monitor the differences can be quite striking!

Steve Phillipps · January 25th, 2009, 08:13 AM

Quote:

Originally Posted by Steve Mitchell

Found a good price on a Canon YH 19X6.7KRS SDTV 1/2 inch lens. Will I get a 16:9 image or 4:3?

You'll certainly get a 16:9 image.
I think the only thing to do is try it vs the stock lens (which is known to be a decent lens). That's what I've been doing, with mixed and interesting results (see some of my threads).

Steve

Ian Semmens · January 28th, 2009, 10:51 PM

Hi All,
I have a a EX1 and a EX3. I am looking for a lens for the EX3 and have been trialing a SD Fujinon 6.4 x 19 BERM with a 2 x doubler. When I use this lens there is a green tint to the picture. I need to change the colour in the Lens menu. Does anyony have some advice about this?
Also I have a choice of this lens or a HD Fujinon HS 5.5 x 18 (no doubler) lens. The problem is that this lens is two and a half times the price of the 19x. Also the 18x is only just long enough for my filming. All of my work is outpout as SD DVDs.
Is it worth the extra for the HD lens? I gather by reading the earlier posts that I can expect a sharper image and an increase in contrast.
Many thanks,
Ian

January 24th, 2009, 07:12 PM	#1
Steve Mitchell New Boot Join Date: Aug 2008 Location: Marietta, GA Posts: 10	Will an SDTV lens work on EX-3? Found a good price on a Canon YH 19X6.7KRS SDTV 1/2 inch lens. Will I get a 16:9 image or 4:3?

January 24th, 2009, 10:39 PM	#2
Mark Angelos New Boot Join Date: Apr 2008 Location: North Hollywood, CA Posts: 21	SD lens - Fijunon 36X zoom worked on EX3 I was able to use a Fijunon 36X zoom effectively on my EX3. I used the ACM-21 1/2" to 2/3" adapater because it has a electronic connection unlike the ACM-18. The SD lens worked fine and provided excellent quality footage.

January 25th, 2009, 05:19 AM	#4
Alister Chapman Inner Circle Join Date: Dec 2005 Location: Bracknell, Berkshire, UK Posts: 4,957	The YH19x6.7 isn't too bad. I used one on my F350 until I was able to get my Canon KH20 HD lens. At least it's a 1/2" lens. You will find it softer than the stock lens but if you need the extra focal length it is IMHO just about acceptable. One thing I have noticed is that HD lenses seem to give higher contrast than SD lenses and this doesn't always show up on test charts etc. There are bigger issues when trying to use 2/3" lenses on the EX as there is a miss-match in the prism size which is only partially corrected by the glass in the ACM-21. I would want to do some serious testing of the specific lens before using a 2/3" SD lens on an EX. The differences in lenses only really show up when you view the footage on a big monitor. By big I mean 37" or larger. On a 50" monitor the differences can be quite striking! __________________ Alister Chapman, Film-Maker/Stormchaser http://www.xdcam-user.com/alisters-blog/ My XDCAM site and blog. http://www.hurricane-rig.com

January 24th, 2009, 11:34 PM	#3
Brian Cassar Major Player Join Date: Jan 2007 Location: Malta Posts: 306	I do not think it's a wise idea to attach a SD lens to a HD camera. This week I did some side by side filming with my EX3 and a friend's Sony HDCAM which was fitted with a very good Fujinon SD 2/3 inch lens. The image from my EX3 totally outperformed the image of this HDCAM + lens combo with regards to sharpness and CA. Obviously the HDCAM then outperformed the EX3 with regards to latitude (but then it is to be expected from a much more expensive camera) although with some tweeking in post the pictures came really close!!. I think that you would be reducing the overall image to the EX3. Also, there was another thread here where someone (I believe it was Alister Chapman, though I might be wrong) posted images from 3 different lenses - the stock lens a SD lens and a Canon HD lens and the results were striking. He found out that the SD degraded the picture while the stock lens stood well when compared to the Canon HD. If you do not do a side by side comparison it might not be so apparent.

January 28th, 2009, 10:51 PM	#6
Ian Semmens Regular Crew Join Date: Mar 2006 Location: Melbourne, Australia Posts: 27	Hi All, I have a a EX1 and a EX3. I am looking for a lens for the EX3 and have been trialing a SD Fujinon 6.4 x 19 BERM with a 2 x doubler. When I use this lens there is a green tint to the picture. I need to change the colour in the Lens menu. Does anyony have some advice about this? Also I have a choice of this lens or a HD Fujinon HS 5.5 x 18 (no doubler) lens. The problem is that this lens is two and a half times the price of the 19x. Also the 18x is only just long enough for my filming. All of my work is outpout as SD DVDs. Is it worth the extra for the HD lens? I gather by reading the earlier posts that I can expect a sharper image and an increase in contrast. Many thanks, Ian