Satin Snow Ground Glass

As a LF (4x5, 5x7, 8x10 and 11x14) user I was looking for a better focus
screen for my 4x5 Special Deardorff Gridded GG---The Maxwell Hi Lux screen
is the top on my list of screens---It is the best I've used by far but then
I've never used a BossScreen yet and likely never will.. I was so impressed
with Bill Maxwells'
screens that I I have one on my 8x10 Deardorff as well (Not the same screen
as the 4x5 Hi-Lux though!!) and replaced the Beattie IntenScreen on my 4x5
Linhof Master Tech.--What an improvement over the super grainy and Hot-Spot
throwing Beattie model. I also had the original Linhof focus screen (Sorry
Bob Soloman--I don't know which screen it was but it sucked big time!!!) but
was un-impressed by it. The Maxwell is my favorite by far!! With the Linhof
I routinely just use my 2-pc right angle viewer for composition and focus as
the Maxwell screen is that bright and almost grainless--that sure makes a
big improvement for 4x5 focus!
My 2 cts.
Joe Burke
 >> Stay informed about: Satin Snow Ground Glass 

I also bought a Satin Snow to replace the GG on my Canham. I was
disappointed.

I actually put the Canham and Satin Snow GGs on a light table and measured
the light levels with my Pentax Digital Spotmeter. The Canham was 1 good
1/2 stop brighter.

The Satin Snow went back into its package and is now a backup in case my
Canham GG ever breaks.


"Matt Clara" wrote in message

 > After a two month wait, my Satin Snow focusing screen arrived. It's no
 > brighter than the original shen-hao screen, but makes for a low cost
 > replacement or backup. I'm calling Bill Maxwell tomorrow. I'd rather not
 > spend the $200+, but I don't like struggling to see my composition.
 >
 > --
 > Regards,
 > Matt Clara
<font color=purple> > <a rel="nofollow" style='text-decoration: none;' href="http://www.mattclara.com</font" target="_blank">www.mattclara.com</font</a>>
 >
 >> Stay informed about: Satin Snow Ground Glass 

"Stealth" wrote in message

 >I also bought a Satin Snow to replace the GG on my Canham.
 >I was disappointed.
 >
 > I actually put the Canham and Satin Snow GGs on a light
 > table and measured the light levels with my Pentax Digital
 > Spotmeter. The Canham was 1 good 1/2 stop brighter.
 >
 > The Satin Snow went back into its package and is now a
 > backup in case my Canham GG ever breaks.
 >
 >


  >> After a two month wait, my Satin Snow focusing screen
  >> arrived. It's no brighter than the original shen-hao
  >> screen, but makes for a low cost replacement or backup.
  >> I'm calling Bill Maxwell tomorrow. I'd rather not spend
  >> the $200+, but I don't like struggling to see my
  >> composition.
  >>
  >> --
  >> Regards,
  >> Matt Clara
<font color=green>  >> <a rel="nofollow" style='text-decoration: none;' href="http://www.mattclara.com</font" target="_blank">www.mattclara.com</font</a>>
  >>
 >
The light table test is not valid for the brightness of
the image from a lens. It is probably showing that the Satin
Snow screen is more diffusing than the Canham. A diffuse
ground glass will show an image which is more uniform in
brightness from center to corners but the center brightness
will be lower than a less diffuse screen. There is only a
certain amount of light available and the differences in
visual brightness have to do with its distribution. A screen
which is somewhat dimmer but is uniform may _appear_ to be
brighter than one which has a hot-spot in the center.
Fresnel field lenses and other similar focusing devices,
actually focus the light from the GG toward your eye. These
are indeed brighter but, again, there is only a certain
amount of light available, so there is a sweet spot where
your eye has to be to see the bright and uniform image. When
lens movements are used on a view camera a Fresnel or other
field lens will make the image darker. The same may be true
when using a wide angle lens. The focal length of the
Fresnel must be such as to focus the light from the lens
into your eye. Most of these are intended to be used with a
"normal" focal length lens. The difference is not so much
with longer lenses but when a wide angle lens is used it can
look dimmer in the corners than would a plain GG. SLR
cameras often have a selection of ground glass for the
finder to match various ranges of focal lengths.


--
---
Richard Knoppow
Los Angeles, CA, USA
dickburk.DeleteThis@ix.netcom.com
 >> Stay informed about: Satin Snow Ground Glass 

 >A screen
 > which is somewhat dimmer but is uniform may _appear_ to be
 > brighter than one which has a hot-spot in the center.

That is the principle on which the BosScreen is based.

"Richard Knoppow" wrote in message

 >


  > >I also bought a Satin Snow to replace the GG on my Canham.
  > >I was disappointed.
  > >
  > > I actually put the Canham and Satin Snow GGs on a light
  > > table and measured the light levels with my Pentax Digital
  > > Spotmeter. The Canham was 1 good 1/2 stop brighter.
  > >
  > > The Satin Snow went back into its package and is now a
  > > backup in case my Canham GG ever breaks.
  > >
  > >


   > >> After a two month wait, my Satin Snow focusing screen
   > >> arrived. It's no brighter than the original shen-hao
   > >> screen, but makes for a low cost replacement or backup.
   > >> I'm calling Bill Maxwell tomorrow. I'd rather not spend
   > >> the $200+, but I don't like struggling to see my
   > >> composition.
   > >>
   > >> --
   > >> Regards,
   > >> Matt Clara
<font color=brown>   > >> <a rel="nofollow" style='text-decoration: none;' href="http://www.mattclara.com</font" target="_blank">www.mattclara.com</font</a>>
   > >>
  > >
 > The light table test is not valid for the brightness of
 > the image from a lens. It is probably showing that the Satin
 > Snow screen is more diffusing than the Canham. A diffuse
 > ground glass will show an image which is more uniform in
 > brightness from center to corners but the center brightness
 > will be lower than a less diffuse screen. There is only a
 > certain amount of light available and the differences in
 > visual brightness have to do with its distribution. A screen
 > which is somewhat dimmer but is uniform may _appear_ to be
 > brighter than one which has a hot-spot in the center.
 > Fresnel field lenses and other similar focusing devices,
 > actually focus the light from the GG toward your eye. These
 > are indeed brighter but, again, there is only a certain
 > amount of light available, so there is a sweet spot where
 > your eye has to be to see the bright and uniform image. When
 > lens movements are used on a view camera a Fresnel or other
 > field lens will make the image darker. The same may be true
 > when using a wide angle lens. The focal length of the
 > Fresnel must be such as to focus the light from the lens
 > into your eye. Most of these are intended to be used with a
 > "normal" focal length lens. The difference is not so much
 > with longer lenses but when a wide angle lens is used it can
 > look dimmer in the corners than would a plain GG. SLR
 > cameras often have a selection of ground glass for the
 > finder to match various ranges of focal lengths.
 >
 >
 > --
 > ---
 > Richard Knoppow
 > Los Angeles, CA, USA

 >
 >
 >> Stay informed about: Satin Snow Ground Glass 

In article ,
"Shelley" <briansng.DeleteThis@verizon.net> wrote:

 > That is the principle on which the BosScreen is based.

Wow 66 lines of unsnipped quotation for a single line response.
 >> Stay informed about: Satin Snow Ground Glass 

Wow one line of useless drivel.

"Inaccessible" wrote in message



 >
  > > That is the principle on which the BosScreen is based.
 >
 > Wow 66 lines of unsnipped quotation for a single line response.
 >> Stay informed about: Satin Snow Ground Glass 

Does Bill Maxwell have a website? I Googled him but nothing came up.
PM

"Matt Clara" wrote in message

 > After a two month wait, my Satin Snow focusing screen arrived. It's no
 > brighter than the original shen-hao screen, but makes for a low cost
 > replacement or backup. I'm calling Bill Maxwell tomorrow. I'd rather not
 > spend the $200+, but I don't like struggling to see my composition.
 >
 > --
 > Regards,
 > Matt Clara
<font color=purple> > <a rel="nofollow" style='text-decoration: none;' href="http://www.mattclara.com</font" target="_blank">www.mattclara.com</font</a>>
 >
 >
 >> Stay informed about: Satin Snow Ground Glass 

In article ,
"P. Meschter" <pmcsp.TakeThisOut@fast.net> wrote:

 > Does Bill Maxwell have a website? I Googled him but nothing came up.
 > PM
 >


  > > After a two month wait, my Satin Snow focusing screen arrived. It's no
  > > brighter than the original shen-hao screen, but makes for a low cost
  > > replacement or backup. I'm calling Bill Maxwell tomorrow. I'd rather not
  > > spend the $200+, but I don't like struggling to see my composition.
  > >
  > > --
  > > Regards,
  > > Matt Clara
<font color=green>  > > <a rel="nofollow" style='text-decoration: none;' href="http://www.mattclara.com</font" target="_blank">www.mattclara.com</font</a>>
  > >
  > >

Its on Matt's Website here- <a rel="nofollow" style='text-decoration: none;' href="http://www.mattclara.com/maxwell" target="_blank">http://www.mattclara.com/maxwell</a>

--
LF Website @ <a rel="nofollow" style='text-decoration: none;' href="http://members.verizon.net/~gregoryblank" target="_blank">http://members.verizon.net/~gregoryblank</a>

"To announce that there must be no criticism of the President,
or that we are to stand by the President, right or wrong,
is not only unpatriotic and servile, but is morally treasonable
to the American public."--Theodore Roosevelt, May 7, 1918
 >> Stay informed about: Satin Snow Ground Glass 

I am a bit surprised to see the word disapointment with our glass, we are a
true ground glass, and am such constrained by the law of optics, we are not
an enhanced screen such as the Boss, or many of the fresnel alternatives
that are available for a far higher cost.

The way you measured your brightness readings were the in-correct method to
use to actually get a true picture of the brightness of the glass.

If you were not happy, I sure wish you would have emailed us, and let us
know you were not happy, and we would have worked the situation out to your
satisfaction.

Currently we are working on a custom grinding machine to speed up the
grinding process, to ensure more speed in the delivery of our screens and
still maintain the low cost alternative to the other screens on the market.

We are currently now the OEM supplier of ground glass screens for the
following companies:

Jack Deardorff, D.P.P.I.
R.H. Phillips & Sons
Great Plains Large Format

As well as Richard Ritter and Karl Faller, who are well known and respected
restoration and repair companies in the US

We have supplied many solutions for many different large format users in
the world and are very happy with our feedback, I do however wish that if
someone is unhappy with a product they purchase from us, they would contact
us and let us know, as something may have gone wrong in the particular
screen you received, we strive to ensure each screen leaves our production
shop, as perfect as possible, but have had a very few screens that may have
had a scratch or something of that nature, we strive to maintain
perfection, which we all know is not possible, but are sure willing to work
something out with anyone that is not happy.

Thanks everybody in the Large Format community for the continued support,
and again, if there is a problem with the quality of our screens, please
feel free to email us at gglass.TakeThisOut@satinsnowglass.com or give us a call at 406-
752-8677

Best Regards and great shooting

David Parker
Satin Snow Ground Glass

--
Message posted via http://www.photokb.com
 >> Stay informed about: Satin Snow Ground Glass 

I am delighted with the Satin Snow product. I received my 11x14 ground
glass after a reasonable and expected wait. It is installed in my
Burke and James and functions just as I expected. If I wanted a
fresnel or a screen brightener, I would have bought a fresnel or a
screen brightener. I wanted ground glass and I got ground glass. I
intend to support honest and quality vendors like Satin Snow and SK
Grimes and a short list of others. You should too.
Tom Keenan
 >> Stay informed about: Satin Snow Ground Glass 

2-3 weeks as I remember.
Best Regards,
Tom Keenan
 >> Stay informed about: Satin Snow Ground Glass 

wrote in message

 >I am delighted with the Satin Snow product. I received my 11x14 ground
 > glass after a reasonable and expected wait.

How long was the wait?
 >> Stay informed about: Satin Snow Ground Glass 

"Tom K" wrote in message

 >
 > 2-3 weeks as I remember.

They must be very busy right now. Summer in NA will do that.
 >> Stay informed about: Satin Snow Ground Glass