Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Television > HDTV Tech > Re: Q: What is ...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 3 of 12 Topic 10586 of 11863
Post > Topic >>

Re: Q: What is the size of the smallest element?

by "Mark A" <nobody@[EMAIL PROTECTED] > Mar 2, 2008 at 07:48 PM

"John McGaw" <nobody@[EMAIL PROTECTED]
> wrote in message
news:7DFyj.13561$pp6.1111@[EMAIL PROTECTED]
> Google is your friend, at least when it comes to searching. One example
of
> scores of similar search results:
>
> http://www.clarkvision.com/imagedetail/film.vs.digital.1.html
>
> -- 
> John McGaw

This is an interesting link, but I think the equipment and methodology are
somewhat flawed. I quote from the link:

"If you read my image detail pages, note that I used consumer grade
cameras
and older used large format lenses for my tests. For example, for my Mount
Sneffels Reflection test scene, I used a Sigma zoom lens on a Canon Elan
camera. For the 4x5 image, I used an old velostigmat uncoated lens. So, I
believe the results derived are what most camera users can achieve. The
one
caveat is that for the fine grained film test, like Fujichrome Velvia, I
stop my 35mm lenses to their optimum performance level (usually f/11) and
I
use a tripod."

A Sigma zoom lens is not representative of what a professional 35mm movie
zoom lens can produce in term of resolution. Movie cameras are almost
always
used on a tripod.

The 4x5 lens used is likewise inferior (old velostigmat uncoated lens).
 




 12 Posts in Topic:
Q: What is the size of the smallest element?
"Eric" <none  2008-03-02 16:23:23 
Re: Q: What is the size of the smallest element?
John McGaw <nobody@[EM  2008-03-02 17:12:35 
Re: Q: What is the size of the smallest element?
"Mark A" <no  2008-03-02 19:48:54 
Re: Q: What is the size of the smallest element?
Hayato Kakita <not.yet  2008-03-05 17:16:20 
Re: Q: What is the size of the smallest element?
John McGaw <nobody@[EM  2008-03-05 11:06:32 
Re: Q: What is the size of the smallest element?
"Mark A" <no  2008-03-05 17:58:03 
Re: What is the size of the smallest element?
"T Shadow" <  2008-03-02 16:37:00 
Re: Q: What is the size of the smallest element?
pj <pj4380@[EMAIL PROT  2008-03-02 20:53:04 
Re: Q: What is the size of the smallest element?
Jim Wilkins <KB1DAL@[E  2008-03-03 14:07:41 
Re: What is the size of the smallest element?
"Mark A" <no  2008-03-02 19:20:20 
Re: Q: What is the size of the smallest element?
Hayato Kakita <not.yet  2008-03-05 17:15:00 
Re: Q: What is the size of the smallest element?
Hayato Kakita <not.yet  2008-03-06 16:53:51 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Sun Nov 23 7:51:17 CST 2008.