Field of View comparisons: with and without WA adapter at DVinfo.net

Chris Hurd · November 30th, 2006, 01:45 PM

Canon XH with and without the WD-H72 0.8x wide angle adapter. All of these still photos were shot at f/3.7 in order to maintain consistency throughout the spread; the XL H1 was also part of this series and the max. aperture on its 20x lens at full tele is f/3.5, so that was my baseline for everything. Zero db gain. Shutter 1/30th. Subject is the Seminole Hard Rock in Hollywood, Florida. Full wide and full telephoto with both XL HD lenses, the 20x and 6x. Click thumbnails to see the full-size versions.

Compare these with the same images from the XL HD 20x and 6x lenses at
http://www.dvinfo.net/conf/showthread.php?p=581966

Alex Leith · November 30th, 2006, 04:24 PM

Thanks Chris.

Chris Hurd · November 30th, 2006, 06:02 PM

Dang! I thought the tripod was level, but...

Bogdan Tyburczy · November 30th, 2006, 07:09 PM

This adapter is sweet! Thanks Chris.

Philip Williams · November 30th, 2006, 08:55 PM

Thanks Chris, very useful.

And that does look like a high quality lens..

Amr Toukhy · February 9th, 2007, 10:18 AM

Thanks Chris,
this comparison was extremely useful, really :)
I wish to see the lens in boxy places moving around and how the straight lines would do !!!!
Amr

Piotr Wozniacki · February 9th, 2007, 10:22 AM

Chris, I asked this in another thread, but still don't know if the WD-H72's hood comes with an opening for the IAF lamp on the A1?

Alex Leith · February 9th, 2007, 10:25 AM

No it doesn't, but it's not a major problem because pretty much everything is in focus when you're that wide.

Piotr Wozniacki · February 9th, 2007, 10:32 AM

Quote:

Originally Posted by Alex Leith

No it doesn't, but it's not a major problem because pretty much everything is in focus when you're that wide.

I have no experience with wide converters, but isn't this one a zoom-through - and if so, can stay on the camera for all kind of shooting, not just "that wide"?

Chris Hurd · February 9th, 2007, 10:40 AM

It is a full zoom-through adapter. The Instant AF function is not compatible with it because the sensor is blocked by the adapter barrel (not the hood). Of course you still have the ability to use Normal AF with this adapter.

Alex Leith · February 9th, 2007, 10:49 AM

Quote:

Originally Posted by Piotr Wozniacki

I have no experience with wide converters, but isn't this one a zoom-through - and if so, can stay on the camera for all kind of shooting, not just "that wide"?

It's quite a chunk of glass. Quality's fantastic (especially for the price). But I've found I'm glad to get rid of it as soon as I don't need it any more. Handheld is very challenging with it on.

Jim Miller · February 9th, 2007, 10:56 AM

I have read in the manual that "Push AF" on the A1 uses "instant focus" no matter if it is set to off at other times. This means that you can not use "push AF' with the WA because the instant focus lens is blocked. Can you verifiy this.

I haven't received my A1 yet.

Alex Leith · February 9th, 2007, 11:15 AM

Quote:

Originally Posted by Jim Miller

I have read in the manual that "Push AF" on the A1 uses "instant focus" no matter if it is set to off at other times. This means that you can not use "push AF' with the WA because the instant focus lens is blocked. Can you verifiy this.

I haven't received my A1 yet.

It doesn't seem to be too much of a problem. Push focus still works as well as normal AF does.... ish...

Dom Stevenson · February 9th, 2007, 11:30 AM

I'm on the verge of buying a Zunow WA lens for the A1 which i tried out yesterday at Videoforum 2007. It made a huge difference to the image and was reasonably priced at £385 B4 VAT. How much is the Canon one (in the UK) and is it reccomended over other brands?

Tom Cambridge · March 13th, 2007, 05:09 AM

Hello, I might be a bit late now but I have found the zunow for only £325 + 7.50 P&P at-

pec.co.uk/oscommerce-2.2ms2/catalog/product_info.php?cPath=246&products_id=1687

I too am looking for a high quaility wide converter for my A1 but do not want to spent £800 on a century, however I would like something wider than even the zunow but one which still remains full zoom-through.

November 30th, 2006, 01:45 PM	#1
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	Field of View comparisons: with and without WA adapter Canon XH with and without the WD-H72 0.8x wide angle adapter. All of these still photos were shot at f/3.7 in order to maintain consistency throughout the spread; the XL H1 was also part of this series and the max. aperture on its 20x lens at full tele is f/3.5, so that was my baseline for everything. Zero db gain. Shutter 1/30th. Subject is the Seminole Hard Rock in Hollywood, Florida. Full wide and full telephoto with both XL HD lenses, the 20x and 6x. Click thumbnails to see the full-size versions. Compare these with the same images from the XL HD 20x and 6x lenses at http://www.dvinfo.net/conf/showthread.php?p=581966 Attached Thumbnails __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

November 30th, 2006, 04:24 PM	#2
Alex Leith Major Player Join Date: Mar 2005 Location: Northampton, England Posts: 500	Thanks Chris. __________________ Alex

November 30th, 2006, 06:02 PM	#3
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	Dang! I thought the tripod was level, but... __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

February 9th, 2007, 10:22 AM	#7
Piotr Wozniacki Inner Circle Join Date: Aug 2006 Location: Poland Posts: 4,086	Chris, I asked this in another thread, but still don't know if the WD-H72's hood comes with an opening for the IAF lamp on the A1? __________________ Sony PXW-FS7 \| DaVinci Resolve Studio; Magix Vegas Pro; i7-5960X CPU; 64 GB RAM; 2x GTX 1080 8GB GPU; Decklink 4K Extreme 12G; 4x 3TB WD Black in RAID 0; 1TB M.2 NVMe cache drive

February 9th, 2007, 10:25 AM	#8
Alex Leith Major Player Join Date: Mar 2005 Location: Northampton, England Posts: 500	No it doesn't, but it's not a major problem because pretty much everything is in focus when you're that wide. __________________ Alex

November 30th, 2006, 07:09 PM	#4
Bogdan Tyburczy Regular Crew Join Date: Oct 2006 Location: Brooklyn Posts: 161	This adapter is sweet! Thanks Chris.

November 30th, 2006, 08:55 PM	#5
Philip Williams Major Player Join Date: Aug 2004 Location: Snellville, Georgia Posts: 614	Thanks Chris, very useful. And that does look like a high quality lens..

February 9th, 2007, 10:18 AM	#6
Amr Toukhy Regular Crew Join Date: Nov 2002 Location: Amman-Jordan Posts: 112	Thanks Chris, this comparison was extremely useful, really :) I wish to see the lens in boxy places moving around and how the straight lines would do !!!! Amr

February 9th, 2007, 10:40 AM	#10
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,366 Images: 513	It is a full zoom-through adapter. The Instant AF function is not compatible with it because the sensor is blocked by the adapter barrel (not the hood). Of course you still have the ability to use Normal AF with this adapter. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

February 9th, 2007, 10:56 AM	#12
Jim Miller Major Player Join Date: Jan 2007 Location: Tampa,Florida Posts: 236	I have read in the manual that "Push AF" on the A1 uses "instant focus" no matter if it is set to off at other times. This means that you can not use "push AF' with the WA because the instant focus lens is blocked. Can you verifiy this. I haven't received my A1 yet.

February 9th, 2007, 11:30 AM	#14
Dom Stevenson Major Player Join Date: Feb 2007 Location: London UK Posts: 430	I'm on the verge of buying a Zunow WA lens for the A1 which i tried out yesterday at Videoforum 2007. It made a huge difference to the image and was reasonably priced at £385 B4 VAT. How much is the Canon one (in the UK) and is it reccomended over other brands?

March 13th, 2007, 05:09 AM	#15
Tom Cambridge New Boot Join Date: Feb 2007 Location: England Posts: 24	Hello, I might be a bit late now but I have found the zunow for only £325 + 7.50 P&P at- pec.co.uk/oscommerce-2.2ms2/catalog/product_info.php?cPath=246&products_id=1687 I too am looking for a high quaility wide converter for my A1 but do not want to spent £800 on a century, however I would like something wider than even the zunow but one which still remains full zoom-through.