XL2 and EF Lens Adapter / EF Lenses / EOS Lens

Tony Hall · November 2nd, 2004, 09:09 AM

Ok, thanks for the info. I think the 12-24mm Sigma would be a sweet lens for the EF adapter. It would be cool if Canon would update the EF adapter for EF-S lenses. That new 10-20mm EF-S would probably be pretty handy.

Jeff Donald · November 4th, 2004, 07:33 AM

They still end up being a telephoto.

Dennis Hingsberg · November 4th, 2004, 08:39 AM

Anyone remember what the factor is when using SLR lenses with the EF adapter?

Tony, you might want to know that. I thought it was around 1.5 so a 16mm SLR lens becomes a 24mm lens on the XL2?

I completely forget the conversion factor :(

Duncan Wilson · November 4th, 2004, 08:56 AM

The crop factor is x7.8 using the XL2 at 16:9, so even at its widest (12mm), this lens will have the same angle of view as a 94mm lens on a 35mm SLR.

I'm really not sure there is any reason to use wide angle SLR lenses on an XL2 via the EF adapter.

Dennis Hingsberg · November 4th, 2004, 09:07 AM

Wow, that's crazy! Now that I think about it, I think my rate factor was based on using 35mm SLR lenses on 35mm digital SLR's (not video cameras).

Jeff Donald · November 4th, 2004, 09:13 AM

The crop or magnification factor is related to the size differences of the chips vs. 35mm film. Some dSLR's (Canon 10D, 20D) have a 1.6x factor and some (Nikon D100, D70) have a 1.5x factor. The Canon 1Ds and new 1DsMkII are 1:1, meaning the chip is the same size as 35mm film.

Dennis Hingsberg · November 4th, 2004, 09:23 AM

Now they just need to do that for video, (use 35mm size CCD's). Not for the added resolution, but for 35mm depth of field. Even a downsampled 35mm CCD image at 720x480 resolution would make me happy - currently I'm using the mini35 to optically reduce images from 35mm lenses to 1/3" CCD's.

Tony Hall · November 4th, 2004, 02:07 PM

Can somebody tell me why the new conversion factor for the XL2 is 7.8 when the chip is the same size? The top and bottom have been deactivated, so it's like shooting in 16:9 mode on the XL1s because the width of the ccd is the same. I don't know why people use diagonals to calculate the angle of view if what they are really concerned with is the horizontal axis. If you put the same lens on the XL1s and the XL2 you'll get the same image in the XL2's viewfinder as you do between the 16:9 guides on the XL1s.

Also, like I pointed out a few weeks ago, Canon has removed any mention of a 7.8x conversion factor from their website. When the camera first came out they said it was 7.8 and told what the equivalent focal length of the new lens was, but that has all been removed for some reason. Perhaps they are reconsidering that.

Desmond Sukotjo · January 28th, 2005, 12:39 AM

Has anybody tried the EF Adapter for Canon XL's? I wonder how it works if we attached a Canon Macro EF Lens onto the XL2 via this adapter. I know the focal length will be x7.2 or something but will it still perform to shoot macro?

Thanks.

Nico van Tonder · January 28th, 2005, 12:42 PM

On our PAL 4:3 aspect ratio the crop factor is 9.6.
I have tried the 100mm f2.8 USM Macro lens today with the XL Adapter on the XL2. Focus is very, very critical, very, very short, but I did not try actual macro focussing, I'll do that tomorrow and I'll report back.

Terence Reis · January 28th, 2005, 08:19 PM

I have played around with EF adapter on my XL2.
Attached Canon 100-400mm F4 IS/USM and 600mm.
More of my work was with telephoto side. Concur
that focus is very short and critical. Sorry, have not
tried any sort of macro shot on this end.

-Terry

Surf Shooter Hawaii
Kapolei, Hawaii
http://www.surfshooterhawaii.com

Desmond Sukotjo · January 28th, 2005, 08:37 PM

Thank You guys. Just want to make it clear. What you mean by focus is very short and critical, are you saying that the depth of field is very very shallow?

Nico, that's exactly the macro lens I have in mind 100mm f2.8 USM Macro. I'll be very excited waiting for your test result.

Thanks again.

Nico van Tonder · January 29th, 2005, 10:15 AM

Hi Desmond,

As it looked as if it was going to rain I conducted some tests in my study.

I mounted the XL2 on a sturdy Manfrotto tripod 055NAT2 equipped with a Manfrotto 516 head and I also attached the NebTek Panasonic 7” LCD monitor on the XL2 to facilitate manual focussing.

The camera lens and the target, a clock, were on a level plane.

As I did not know exactly where the focal plane is situated in the XL2, I measured the distance from the beginning of the lens housing on the body of the XL2 to the object when I obtained the sharpest and nearest focus. That was exactly 29cm at 1/6th of a second at f/8.00. The focus ring of lens was on the 1:1 mark. I have florescent lighting in my study.

Do not even try do use this lens on a XL2 without a tripod for macro work. It is almost impossible to focus it and holding it still.

The depth of field on that distance and exposure is less than the width of a hair! I could see the individual drops of paint on the clock with a number in focus but if you move the camcorder a fraction of a millimetre it is out of focus.

Terence Reis · January 29th, 2005, 10:35 AM

Desmond,

I've noticed focusing was fairly hard using my 100-400mm.
Not the greatest lens to be using with XL2 and shooting
surf. A very very stable platform is required. I noticed
a great deal of shake when zooming out on surfers.

Again, I was just playing around. I usually use standard
20X lens for shooting surf. It works fairly well for me.

If you didn't catch it on the board, I connected
my 600mm EF on my XL2. Shot the full moon
Chirstmas Day evening.

You can find clip on my video clip page:

http://www.surfshooterhawaii.com/video.html

Sorry I can't help you more. Sounds like Nico provided
you some great information.

Aloha,

-Terry

Desmond Sukotjo · January 30th, 2005, 12:36 AM

Nico. Thanks a bunch for your info. I really appreciate it. That was really helpful.

Terence, when you attached your 600mm EF on your XL2 to shoot that moon, were you having problem with focusing as well or you put the camera on a tripod?

Thanks again guys.

November 2nd, 2004, 09:09 AM	#76
Tony Hall Major Player Join Date: Jul 2004 Location: springfield, OH Posts: 344	Ok, thanks for the info. I think the 12-24mm Sigma would be a sweet lens for the EF adapter. It would be cool if Canon would update the EF adapter for EF-S lenses. That new 10-20mm EF-S would probably be pretty handy. __________________ Tony "Good taste is the enemy of creativity" - Picasso Blog: http://www.tonyhall.name

November 4th, 2004, 07:33 AM	#77
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	They still end up being a telephoto. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

November 4th, 2004, 08:39 AM	#78
Dennis Hingsberg Trustee Join Date: Oct 2003 Location: Toronto, Canada Posts: 1,055	Anyone remember what the factor is when using SLR lenses with the EF adapter? Tony, you might want to know that. I thought it was around 1.5 so a 16mm SLR lens becomes a 24mm lens on the XL2? I completely forget the conversion factor :( __________________ Blog: www.hingsberg.com Ultimate Exposure Guides for FS5/F7S/F5/F55

November 4th, 2004, 09:07 AM	#80
Dennis Hingsberg Trustee Join Date: Oct 2003 Location: Toronto, Canada Posts: 1,055	Wow, that's crazy! Now that I think about it, I think my rate factor was based on using 35mm SLR lenses on 35mm digital SLR's (not video cameras). __________________ Blog: www.hingsberg.com Ultimate Exposure Guides for FS5/F7S/F5/F55

November 4th, 2004, 09:13 AM	#81
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	The crop or magnification factor is related to the size differences of the chips vs. 35mm film. Some dSLR's (Canon 10D, 20D) have a 1.6x factor and some (Nikon D100, D70) have a 1.5x factor. The Canon 1Ds and new 1DsMkII are 1:1, meaning the chip is the same size as 35mm film. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors

November 4th, 2004, 08:56 AM	#79
Duncan Wilson Regular Crew Join Date: Jan 2004 Location: Jersey, Channel Islands Posts: 41	The crop factor is x7.8 using the XL2 at 16:9, so even at its widest (12mm), this lens will have the same angle of view as a 94mm lens on a 35mm SLR. I'm really not sure there is any reason to use wide angle SLR lenses on an XL2 via the EF adapter.

November 4th, 2004, 09:23 AM	#82
Dennis Hingsberg Trustee Join Date: Oct 2003 Location: Toronto, Canada Posts: 1,055	Now they just need to do that for video, (use 35mm size CCD's). Not for the added resolution, but for 35mm depth of field. Even a downsampled 35mm CCD image at 720x480 resolution would make me happy - currently I'm using the mini35 to optically reduce images from 35mm lenses to 1/3" CCD's. __________________ Blog: www.hingsberg.com Ultimate Exposure Guides for FS5/F7S/F5/F55

November 4th, 2004, 02:07 PM	#83
Tony Hall Major Player Join Date: Jul 2004 Location: springfield, OH Posts: 344	Can somebody tell me why the new conversion factor for the XL2 is 7.8 when the chip is the same size? The top and bottom have been deactivated, so it's like shooting in 16:9 mode on the XL1s because the width of the ccd is the same. I don't know why people use diagonals to calculate the angle of view if what they are really concerned with is the horizontal axis. If you put the same lens on the XL1s and the XL2 you'll get the same image in the XL2's viewfinder as you do between the 16:9 guides on the XL1s. Also, like I pointed out a few weeks ago, Canon has removed any mention of a 7.8x conversion factor from their website. When the camera first came out they said it was 7.8 and told what the equivalent focal length of the new lens was, but that has all been removed for some reason. Perhaps they are reconsidering that. __________________ Tony "Good taste is the enemy of creativity" - Picasso Blog: http://www.tonyhall.name

January 28th, 2005, 12:39 AM	#84
Desmond Sukotjo Regular Crew Join Date: May 2004 Location: San Francisco, CA Posts: 88	XL2 + EF Adapter + Macro Lens Has anybody tried the EF Adapter for Canon XL's? I wonder how it works if we attached a Canon Macro EF Lens onto the XL2 via this adapter. I know the focal length will be x7.2 or something but will it still perform to shoot macro? Thanks.

January 28th, 2005, 12:42 PM	#85
Nico van Tonder Regular Crew Join Date: Oct 2004 Location: Pretoria, South Africa Posts: 33	On our PAL 4:3 aspect ratio the crop factor is 9.6. I have tried the 100mm f2.8 USM Macro lens today with the XL Adapter on the XL2. Focus is very, very critical, very, very short, but I did not try actual macro focussing, I'll do that tomorrow and I'll report back. __________________ Nico

January 28th, 2005, 08:19 PM	#86
Terence Reis New Boot Join Date: Nov 2004 Location: Waipahu, Hawaii Posts: 24	XL2 EF Adapter I have played around with EF adapter on my XL2. Attached Canon 100-400mm F4 IS/USM and 600mm. More of my work was with telephoto side. Concur that focus is very short and critical. Sorry, have not tried any sort of macro shot on this end. -Terry Surf Shooter Hawaii Kapolei, Hawaii http://www.surfshooterhawaii.com __________________ Shredder

January 28th, 2005, 08:37 PM	#87
Desmond Sukotjo Regular Crew Join Date: May 2004 Location: San Francisco, CA Posts: 88	Thank You guys. Just want to make it clear. What you mean by focus is very short and critical, are you saying that the depth of field is very very shallow? Nico, that's exactly the macro lens I have in mind 100mm f2.8 USM Macro. I'll be very excited waiting for your test result. Thanks again.

January 29th, 2005, 10:15 AM	#88
Nico van Tonder Regular Crew Join Date: Oct 2004 Location: Pretoria, South Africa Posts: 33	Hi Desmond, As it looked as if it was going to rain I conducted some tests in my study. I mounted the XL2 on a sturdy Manfrotto tripod 055NAT2 equipped with a Manfrotto 516 head and I also attached the NebTek Panasonic 7” LCD monitor on the XL2 to facilitate manual focussing. The camera lens and the target, a clock, were on a level plane. As I did not know exactly where the focal plane is situated in the XL2, I measured the distance from the beginning of the lens housing on the body of the XL2 to the object when I obtained the sharpest and nearest focus. That was exactly 29cm at 1/6th of a second at f/8.00. The focus ring of lens was on the 1:1 mark. I have florescent lighting in my study. Do not even try do use this lens on a XL2 without a tripod for macro work. It is almost impossible to focus it and holding it still. The depth of field on that distance and exposure is less than the width of a hair! I could see the individual drops of paint on the clock with a number in focus but if you move the camcorder a fraction of a millimetre it is out of focus. __________________ Nico

January 29th, 2005, 10:35 AM	#89
Terence Reis New Boot Join Date: Nov 2004 Location: Waipahu, Hawaii Posts: 24	XL2 EF Adapter Desmond, I've noticed focusing was fairly hard using my 100-400mm. Not the greatest lens to be using with XL2 and shooting surf. A very very stable platform is required. I noticed a great deal of shake when zooming out on surfers. Again, I was just playing around. I usually use standard 20X lens for shooting surf. It works fairly well for me. If you didn't catch it on the board, I connected my 600mm EF on my XL2. Shot the full moon Chirstmas Day evening. You can find clip on my video clip page: http://www.surfshooterhawaii.com/video.html Sorry I can't help you more. Sounds like Nico provided you some great information. Aloha, -Terry __________________ Shredder

January 30th, 2005, 12:36 AM	#90
Desmond Sukotjo Regular Crew Join Date: May 2004 Location: San Francisco, CA Posts: 88	Nico. Thanks a bunch for your info. I really appreciate it. That was really helpful. Terence, when you attached your 600mm EF on your XL2 to shoot that moon, were you having problem with focusing as well or you put the camera on a tripod? Thanks again guys.