Epson V750 Auto IT8 Calibration with Multiple Targets

flatbed scanners for Epson

tgphoto
SilverFast User
SilverFast User
Posts: 36
Joined: Sun Mar 16, 2008 12:47 pm
Scanner: Epson V750-M Pro
SilverFast Product: Ai Studio
Location: Galesburg, IL
Contact:

Epson V750 Auto IT8 Calibration with Multiple Targets

Postby tgphoto » Mon Oct 19, 2009 1:48 pm

I am using Silverfast Ai Studio v6.6.1r3 and have recently acquired calibration targets from Lasersoft.

I successfully calibrated my Epson V750 scanner using the Fuji 6x7 target. However, I have other targets as well...Fuji 4x5, Fuji 35mm, Kodak in 35, 6x7, and 4x5.

My questions are twofold:

1) How often should I re-calibrate my scanner? Every time I switch film brands? When I switch film formats?

2) Is there a way for Silverfast to save multiple profiles, so I can quickly switch from one to the other without re-calibrating the scanner?

Thanks!

Tim :D

User avatar
LSI_Ketelhohn
LSI Staff
LSI Staff
Posts: 4283
Joined: Wed May 28, 2008 11:19 am
Scanner: all
Location: Kiel, Germany
Contact:

Re: Epson V750 Auto IT8 Calibration with Multiple Targets

Postby LSI_Ketelhohn » Wed Oct 21, 2009 2:05 pm

Dear tgphoto,

An individual calibration for different film Formats is not necessary.
(With the exception of Kodachrome positives)

The calibration is a colorspace calibration and does not include any film-type specific elements.
The larger targets are only more stable and generally give a better result.

Recalibration is only necessary if the external conditions of your scanning environment change.
(e.g. temperature, humidity, etc.)
Most user calibrate once a month.
But sudden changes in room temperature can also make it necessary to recalibrate.

Kind regards
Arne Ketelhohn.

iomatic
Visitor
Posts: 5
Joined: Tue Oct 20, 2009 9:11 pm
Scanner: Epson v750M
SilverFast Product: Ai

Re: Epson V750 Auto IT8 Calibration with Multiple Targets

Postby iomatic » Thu Oct 22, 2009 6:53 pm

So are you guys saying you can use any IT8 target for basically any film? Or are you saying you should match the film manufacturer for each film target (i.e., buy targets for each kind of film you shoot?)

Thanks!

LSI_Morales
SilverFast Master
SilverFast Master
Posts: 1430
Joined: Mon Oct 22, 2007 9:33 am

Re: Epson V750 Auto IT8 Calibration with Multiple Targets

Postby LSI_Morales » Fri Oct 23, 2009 7:58 am

Dear iomatic,

iomatic wrote:So are you guys saying you can use any IT8 target for basically any film?


More or less yes (when it comes to slides), with the exception of Kodachrome, as indicated by my colleague, this type of slide needs a specific target.

Cheers

ima
Visitor
Posts: 5
Joined: Fri Nov 13, 2009 8:10 am
Scanner: Epson V750
SilverFast Product: Ai Studio

Re: Epson V750 Auto IT8 Calibration with Multiple Targets

Postby ima » Fri Nov 13, 2009 11:28 am

Can I take the ICC profile obtained from using MonacoEZcolor and then use it with the SilverFast Ai Stuio software ??

LSI_Morales
SilverFast Master
SilverFast Master
Posts: 1430
Joined: Mon Oct 22, 2007 9:33 am

Re: Epson V750 Auto IT8 Calibration with Multiple Targets

Postby LSI_Morales » Mon Nov 16, 2009 9:04 am

Dear ima,

Yes, it is possible to call the ICC profile from within SilverFast Ai Studio. The following link leads to chapter 7 "Color Management" or our instruction manual.

http://www.silverfast.com/download/docu/ch7colourmanagement,completechapter_en_2006-06-21.pdf

Also a special color management adendum here: http://www.silverfast.com/download/docu/colormanagementguide_en_2006-01-24.pdf

Kind regards
Alejandro Morales

LaserSoft Imaging
Media manager, Software testing


Return to “Epson”

Who is online

Users browsing this forum: No registered users and 1 guest