XH A1 close focus capabilities? at DVinfo.net
DV Info Net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XH Series HDV Camcorders
Register FAQ Today's Posts Buyer's Guides

Canon XH Series HDV Camcorders
Canon XH G1S / G1 (with SDI), Canon XH A1S / A1 (without SDI).

Reply
 
Thread Tools Search this Thread
Old November 24th, 2006, 08:03 AM   #1
Major Player
 
Join Date: Nov 2005
Location: Tartu, Estonia
Posts: 579
XH A1 close focus capabilities?

I was wondering that maybe A1 can be focused to 36x24mm or smaller frame without an expensive achromat as it has quite good close focusing capabilities?

My cad simulation shows that at the widest angle in can focus on 36x24mm frame from ca 25mm but minimum distance required to get rid of vignetting in dof adaptor assembly is somewhere at 50mm.

Can someone please test if A1 can focus a 36x24mm or smaller frame from 50mm to 64mm distance? Focusing on 32x20 frame at 64mm would be perfect.

Thanks in advance,
T

Last edited by Toenis Liivamaegi; November 24th, 2006 at 09:01 AM.
Toenis Liivamaegi is offline   Reply With Quote
Old November 24th, 2006, 10:39 AM   #2
Obstreperous Rex
 
Join Date: Jan 2001
Location: San Marcos, TX
Posts: 27,368
Images: 513
The best I could do for you quickly is a 58mm by 36mm target (the world's smallest Chroma DuMonde!) handheld at a distance of approximately 50mm with a focal length of Z50 (halfway through the zoom range). The other image is the edge of a ruler placed right against the front of the A1 lens bayonet mount... a distance of about maybe 9 or 10mm to the front objective. The width of the image is about 48mm, considerable less than the width of the front objective itself (which is 72mm). Hope this helps,
Attached Thumbnails
XH A1 close focus capabilities?-cdr50mm-z36.jpg   XH A1 close focus capabilities?-rulermacro.jpg  

__________________
CH

Search DV Info Net | 20 years of DVi | ...Tuesday is Soylent Green Day!
Chris Hurd is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon HDV and DV Camera Systems > Canon XH Series HDV Camcorders


 



All times are GMT -6. The time now is 05:16 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network