Datacolor User to User Support Group.

I have had some trouble with Spyder3Print on a new Mac Mini running 
Leopard. The OS could see the sensor, but not S3P. Support Europe 
suggested installing the latest version, but I already have 3.0.1 as 
indicated in my support ticket, and I can find nothing laterer.

Today it works! I measured a chart I had printed earlier only to find 
that the profiled image had unpleasant crossovers in the grayscale 
whereas the unprofiled image was fairly good on colour, but the 
grayscale ramp was off: a really big jump between 90K and 100K.

I then wondered whether the spectro could be faulty. After cleaning the 
white pad and re-calibrating, I made some measurements off a Macbeth 
ColorChecker. Here are some results:

Lab    a    b
White    0.06    3.16
Red    59    29
Green    -39    32
Blue    15    -51

All of these readings seem to be somewhat off target, but the blue 
especially so. Do I have a faulty spectro, or is there something I have 
missed?

Tim Mimpriss

On Mar 19, 2008, at 11:14 AM, Tim Mimpriss wrote:
> I have had some trouble with Spyder3Print on a new Mac Mini running
> Leopard. The OS could see the sensor, but not S3P. Support Europe
> suggested installing the latest version, but I already have 3.0.1 as
> indicated in my support ticket, and I can find nothing laterer.
>
>
It couldn't have been a software problem; maybe just a USB or power- 
over-USB
problem. What USB port do you have it connected to?
> Today it works! I measured a chart I had printed earlier only to find
> that the profiled image had unpleasant crossovers in the grayscale
> whereas the unprofiled image was fairly good on colour, but the
> grayscale ramp was off: a really big jump between 90K and 100K.
>
>
Sounds like bad measurements or other mistakes in the process to me.

Have a look at the first video in this set and see if that helps:

http://spyder.datacolor.com/learn_videos.php
> I then wondered whether the spectro could be faulty. After cleaning  
> the
> white pad and re-calibrating, I made some measurements off a Macbeth
> ColorChecker. Here are some results:
>
> Lab a b
> White 0.06 3.16
> Red 59 29
> Green -39 32
> Blue 15 -51
>
> All of these readings seem to be somewhat off target, but the blue
> especially so. Do I have a faulty spectro, or is there something I  
> have
> missed?
>
>

If you can email your measurement files to me at davem@...,
I can take a look at them and see what the problem is. Use the File:Open
Data command to open the folder containing the measurement files.

Best regards,


David Miller
Senior Software Developer, Digital Color Solutions
Datacolor

David,

Thank you. See below

David Miller wrote:
> On Mar 19, 2008, at 11:14 AM, Tim Mimpriss wrote:
>> I have had some trouble with Spyder3Print on a new Mac Mini running
>> Leopard. The OS could see the sensor, but not S3P. Support Europe
>> suggested installing the latest version, but I already have 3.0.1 as
>> indicated in my support ticket, and I can find nothing laterer.
>>
>>
> It couldn't have been a software problem; maybe just a USB or power- 
> over-USB
> problem. What USB port do you have it connected to?

Tried both port on computer and powered hub.

>> Today it works! I measured a chart I had printed earlier only to find
>> that the profiled image had unpleasant crossovers in the grayscale
>> whereas the unprofiled image was fairly good on colour, but the
>> grayscale ramp was off: a really big jump between 90K and 100K.
>>
>>
> Sounds like bad measurements or other mistakes in the process to me.
> 
> Have a look at the first video in this set and see if that helps:
> 
> http://spyder.datacolor.com/learn_videos.php

Have done so. the most useful learning point is to use Measured rather 
than Split on the measurement screen.

>> I then wondered whether the spectro could be faulty. After cleaning  
>> the
>> white pad and re-calibrating, I made some measurements off a Macbeth
>> ColorChecker. Here are some results:
>>
>> Lab a b
>> White 0.06 3.16
>> Red 59 29
>> Green -39 32
>> Blue 15 -51
>>
>> All of these readings seem to be somewhat off target, but the blue
>> especially so. Do I have a faulty spectro, or is there something I  
>> have
>> missed?
>>
>>
> 
> If you can email your measurement files to me at davem@...,
> I can take a look at them and see what the problem is. Use the File:Open
> Data command to open the folder containing the measurement files.

Will do.

> 
> Best regards,
> 
> 
> David Miller
> Senior Software Developer, Digital Color Solutions
> Datacolor
> 
>