Using Photoshop for Zone/Speed Test

"Tom Phillips" schreef in bericht
...
|
|
| An inexpensive visual densitometer you can get used
| is far simpler, accurate, and a lot cheaper than a
| scanner+PS.
|

Until now I thought a densitometer was a very expensive electronic diveice,
unafordable in my case. Can you explain me what this visual densitometer is?
Do you know of any brands...?

Thanks,

Jan

Jan T wrote:

"Tom Phillips" schreef in bericht
...
|
|
| An inexpensive visual densitometer you can get used
| is far simpler, accurate, and a lot cheaper than a
| scanner+PS.
|

Until now I thought a densitometer was a very expensive electronic diveice,
unafordable in my case. Can you explain me what this visual densitometer is?
Do you know of any brands...?

Thanks,

Jan


Visual is one that reads only b&w, as opposed to
other modes for color negatives and tranparencies.
Orthochromatic densitometers can also be used to
read b&w negative densities. It's the color filters
(which must meet stringent standards) that tend to
make densitometers "very" expensive.

Older used visual densitometers with an analog readout
shouldn't be "expensive." At least not compared with
buying a non-upgrade version of PS.

BYW, Phil Davis in his Beyond the Zone System
tells how to make an adequate densitometer out
of a Pentax V analog spot meter. Always some
old used V's around.

Tom Phillips wrote:

Jan T wrote:

"Tom Phillips" schreef in bericht
...
|
|
| An inexpensive visual densitometer you can get used
| is far simpler, accurate, and a lot cheaper than a
| scanner+PS.
|

Until now I thought a densitometer was a very expensive electronic diveice,
unafordable in my case. Can you explain me what this visual densitometer is?
Do you know of any brands...?

Thanks,

Jan

Visual is one that reads only b&w, as opposed to
other modes for color negatives and tranparencies.
Orthochromatic densitometers can also be used to
read b&w negative densities. It's the color filters
(which must meet stringent standards) that tend to
make densitometers "very" expensive.

Older used visual densitometers with an analog readout
shouldn't be "expensive." At least not compared with
buying a non-upgrade version of PS.

Jan T wrote:
Do you know of any brands...?

Older used visual densitometers with an analog readout
shouldn't be "expensive."

Sorry. Try Speedmaster.

Ebay has some on occasion. Also a place to
check is

http://www.photosupplyinc.com/

$100 to $200 max is all I'd pay for one
in excellent condition.