Luminous Landscape Forum

Raw & Post Processing, Printing => Colour Management => Topic started by: TonyW on July 18, 2019, 04:10:35 pm

Title: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on July 18, 2019, 04:10:35 pm
I may have the opportunity to pick up a Gretag Macbeth system with iProfiler software at what appears to be a very low price, under $200! (looks like the attachment).  Not 100% sure of the unit name or version or what software version but from what I know it appears to be in first-class working condition.

Is it a worthwhile purchase for producing print profiles or is it too long in the tooth to be considered.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: digitaldog on July 18, 2019, 04:15:46 pm
That's a Spectrolino with x/y tab;e a very good unit albeit SLOW and noisy. Based on the color, I suspect it's going to come with ProfileMaker Pro (purple indicated if memory serves, it's got a built in dongle for that). Does it actually work? Can you attach it to your current system (may need adaptors and software).
http://www.gain.com.tw/archives/Spectrolino_en.pdf
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on July 18, 2019, 04:36:48 pm
That's a Spectrolino with x/y tab;e a very good unit albeit SLOW and noisy. Based on the color, I suspect it's going to come with ProfileMaker Pro (purple indicated if memory serves, it's got a built in dongle for that). Does it actually work? Can you attach it to your current system (may need adaptors and software).
http://www.gain.com.tw/archives/Spectrolino_en.pdf
Andrew, excellent information thank you.

I might be wrong here but I think it does come with ProfileMaker Pro version 3.5? - Windows 98!
I will be checking it out to see if it does actually work but it seems that it does - according to the seller!

At this time I do not know what is required to connect and if new software required exactly what will work and the cost I am on Windows 10
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: digitaldog on July 18, 2019, 04:57:18 pm
You'll have to download the software assuming you can find it, the dongle *should* be built into the hardware for it if memory serves but check. You'll need to hook it up serial port somehow if you have an old enough machine or can find some kind of adaptor for USB and software, again iffy.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Rhossydd on July 18, 2019, 05:40:49 pm
At this time I do not know what is required to connect and if new software required exactly what will work and the cost I am on Windows 10
Your best bet is to forget trying to run it on a modern W10 system, but break out an old W98/XP 32bit system with a normal RS232 serial port.
It's not particularly resource heavy, so you ought to be able to pick up an old system for peanuts.

Yes, if working, it's a very good spectro, but as Andrew says it's noisy and painfully slow compared to contemporary systems. Hence why running it on a dedicated old system makes sense.

If PMP 3.5 doesn't work and I'm not sure that the Spectralino necessarily had a built in dongle, you should probably manage to pass the data to Argyll to build a profile in.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: digitaldog on July 18, 2019, 05:55:04 pm
Right, one could still use the hardware (but one still needs software: ColorPort, MeasureTool etc) to measure and save a CGATs file, build the profiles with something else.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: GWGill on July 18, 2019, 08:29:52 pm
If PMP 3.5 doesn't work and I'm not sure that the Spectralino necessarily had a built in dongle, you should probably manage to pass the data to Argyll to build a profile in.
ArgyllCMS will directly drive this instrument. You can then use Hexagonal test charts :-)
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: DP on July 18, 2019, 08:45:02 pm
I may have the opportunity to pick up a Gretag Macbeth system

make sure the calibration tile is there and matches the S/N
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on July 19, 2019, 09:47:31 am
You'll have to download the software assuming you can find it, the dongle *should* be built into the hardware for it if memory serves but check. You'll need to hook it up serial port somehow if you have an old enough machine or can find some kind of adaptor for USB and software, again iffy.
Will make sure that I can run it - I think it pretty easy and cheap to get a USB to RS232 or even a USB to LPT 36-pin adapter

Your best bet is to forget trying to run it on a modern W10 system, but break out an old W98/XP 32bit system with a normal RS232 serial port.
It's not particularly resource heavy, so you ought to be able to pick up an old system for peanuts.

Yes, if working, it's a very good spectro, but as Andrew says it's noisy and painfully slow compared to contemporary systems. Hence why running it on a dedicated old system makes sense.

If PMP 3.5 doesn't work and I'm not sure that the Spectralino necessarily had a built in dongle, you should probably manage to pass the data to Argyll to build a profile in.
If I do decide to purchase then it does seem sensible to purchase a cheap dedicated system to run.  Although it looks like ArgyllCMS may offer salvation

ArgyllCMS will directly drive this instrument. You can then use Hexagonal test charts :-)
Excellent news thank you  :)

make sure the calibration tile is there and matches the S/N
Thanks for the heads up.

I will be checking the unit out with the current owner over the next week or so which will enable me to evaluate if working and usable for me.  I am not sure it will be that useful for him as he is printing to glass, metal, wax and other 'unusual' substrates and the unit really was an impulse buy.  I have found and downloaded the manuals for further study.

Many thanks to all who offered opinion and advice - much appreciated  ;D
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Rhossydd on July 19, 2019, 06:16:29 pm
I think it pretty easy and cheap to get a USB to RS232 or even a USB to LPT 36-pin adapter
Be warned that there reports that many of these adaptors(and their drivers) don't exactly follow the correct protocols. The Spectrascan is apparently rather fussy about such issues, so may not work going via some USB or parallel adaptors. All rather a lottery.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: DP on July 19, 2019, 08:07:52 pm
Will make sure that I can run it - I think it pretty easy and cheap to get a USB to RS232 or even a USB to LPT 36-pin adapter

I have couple of spectrolinos and I am using this -> https://www.tripplite.com/keyspan-high-speed-usb-to-serial-adapter~USA19HS
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: DP on July 19, 2019, 08:10:36 pm
If I do decide to purchase
if it works just get it... you can always resell if for a profit !
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: digitaldog on July 19, 2019, 08:16:17 pm
I those old days, I ran my unit without issue using the Keyspan to USB too, it's still around in a drawer somewhere. This was many OS ago and the Keyspan needed it's own software (driver) too. So check that the driver is still supported with your OS.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: GWGill on July 19, 2019, 08:30:31 pm
I those old days, I ran my unit without issue using the Keyspan to USB too, it's still around in a drawer somewhere. This was many OS ago and the Keyspan needed it's own software (driver) too. So check that the driver is still supported with your OS.
I had two keyspan adapters for testing instruments :- they both bricked themselves in an identical manner, basically loosing their firmware and reverting to an un-programmed state. Not recommended.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Pat Herold on July 22, 2019, 03:19:04 pm
Send me a message if you get it, and I can send you an X/Y scanning head alignment procedure you might need.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on July 23, 2019, 12:01:55 pm
Thanks, guys for the heads up about the Serial to USB ports I will be checking carefully.  Thank you Pat for your kind offer and your pdf link.  Once again all your input much appreciated  8)

At present my friend and coach who has the unit has not got it up and working as he needs an older system (Win 98?) using the ProfileMaker 3.* that came with it.  For the moment want to try and get it working as it came originally prior to looking at the ArgylCMS option.  The message comes up that it cannot find the dongle.  From this, I assume that the Spectrolino included the dongle internally and the software/drivers expected to find this when the system boots?

Hope to get a chance to look in depth at the unit in the next week or so



Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Rhossydd on July 23, 2019, 12:53:30 pm
  The message comes up that it cannot find the dongle.  From this, I assume that the Spectrolino included the dongle internally and the software/drivers expected to find this when the system boots?
There are several possibilities that could be causing this error and without knowing what's meant to be happening there are a lot of options.

If you're just trying to get PMP running without the Spectraliono on the system, it will be looking for a dedicated USB dongle (*which I assume you haven't got).

The Spectrolino may have a built in licence dongle, but would need to be showing up as a device present on the system. If not, you'll need to sort out the driver.

All the GMB dongles and licenced items I've used are plug and play, so you shouldn't have to go through boot cycles to find them, but USB>serial port adaptors might not be so accommodating.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Klahne on July 23, 2019, 01:21:28 pm
I had two keyspan adapters for testing instruments :- they both bricked themselves in an identical manner, basically loosing their firmware and reverting to an un-programmed state. Not recommended.

I use a Keyspan adapter to communicate, (nearly every day for years) with a Broncolor Grafit power pack.  I have model # USA-28XG with Keyspan 2.6 software and it runs fine with Mac OS 10.13.6  This particular model is discontinued but model # USA-19HS is still supported by Tripplite.  Their product page is:  https://www.tripplite.com/keyspan-high-speed-usb-to-serial-adapter~USA19HS  Tech support could not provide an ETA for a 64 bit driver version, required for Mac OS 10.15 (Catalina).


Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: GWGill on July 23, 2019, 08:59:26 pm
I use a Keyspan adapter to communicate, (nearly every day for years) with a Broncolor Grafit power pack.
The two I had were #USA-19HS. They worked well until they didn't.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Alexey.Danilchenko on July 30, 2019, 08:55:50 am
ArgyllCMS will directly drive this instrument. You can then use Hexagonal test charts :-)

I am using exacatly that (Spectroscan) from latest MacOS and Windows 10 via ArgyllCMS to profile my printer and it works a treat. In fact it's the only software that I managed to make work with Spectroscan on modern OS (thanks Graeme).

Noise wise and being slow is not really an issue - I just leave it running scanning large target in the evening whilst I do other things.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on August 15, 2019, 11:18:55 am
A quick update as I have borrowed the Spectroscan for a couple of days.  As already stated by Andrew this came as a bundle with ProfileMaker 3.1.  which will not run on Windows 10 64 bit of course.

I have had trouble getting Windows to recognise the device and think that this may be due to the USB to serial converter.  This is a Prolific PL2303 USB To Serial.  I have tried a couple of different drivers without success and am guessing this must be an older device that does not have WIndows 10 support.  The only stamp on the unit shows 2303.  Getting Error 10 and yellow exclamation mark in Device manager.

So it looks like I will need to find a usable USB to Serial adapter to run ArgyllCMS on WIndows 10 - any recommendations?
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Alan Goldhammer on August 15, 2019, 12:08:43 pm

So it looks like I will need to find a usable USB to Serial adapter to run ArgyllCMS on WIndows 10 - any recommendations?
I suspect the main problem is that there is not a Windows 10 compliant driver for the instrument.  The adapter is not the big problem here.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Rhossydd on August 15, 2019, 01:55:59 pm
I suspect the main problem is that there is not a Windows 10 compliant driver for the instrument.  The adapter is not the big problem here.
As was said at the beginning of the thread.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Alan Goldhammer on August 15, 2019, 02:18:29 pm
As was said at the beginning of the thread.
I know.  I was just trying to reinforce to the OP that the connector likely not the issue.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Rhossydd on August 15, 2019, 03:09:49 pm
Alan, I know you know ;-)

Sometimes people need to listen to those of us that actually own this kit and trust us to be helpful, even if it's not what they want to hear.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on August 15, 2019, 03:59:19 pm
Alan, I know you know ;-)

Sometimes people need to listen to those of us that actually own this kit and trust us to be helpful, even if it's not what they want to hear.
Yes, I did actually listen. 

I listened to Andrew Rodney who mentioned the inbuilt dongle in the Spectrolino and GWGill who said ArgyllCMS will directly drive the instrument.  Also listened to DP running two units with Keyspan adapter and also GWGill warning about losing firmware.

I also listened to Alexey.Danilchenko using ArgyllCMS to drive the exact spectroscan that I am looking at.  Interface device not mentioned.

So the upshot of this appears to be that the Spectroscan can be run successfully from a modern OS using the well respected ArgyllCMS

The problem with the Prolific adapter is the fact that the chip has been discontinued and understandably no driver support.  From that supplier however there are a number of PL 2303 that are Windows 10 and MacOS compliant.  So what I was looking for was any comment about specific adapters apart from the Keyspan.

Once again I will stress that I do not own this unit I have merely been given it to play with for a day or two.  I have no intention now of running a separate PC or Mac just for this one job.

Sometimes people who own pieces of kit also need to listen to other users different helpful replies rather than try making smart ass replies
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: TonyW on August 15, 2019, 04:04:06 pm
I suspect the main problem is that there is not a Windows 10 compliant driver for the instrument.  The adapter is not the big problem here.
Thank you Alan.  As it turns out the adapter chip being discontinued is the issue and due to this no Windows 10 drivers developed.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Rhossydd on August 15, 2019, 04:04:36 pm
Sometimes people who own pieces of kit also need to listen to other users different helpful replies rather than try making smart ass replies
Well I have read the entire thread myself too. Listening to people who only use Mac OS isn't going to be much help to you if you run W10.

'smart ass reply' ?? I've tried to help with the best advice I can after having researched, tried a lot of suggestions and used this kit. If you want to try to invent a new wheel go ahead.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: Alexey.Danilchenko on August 15, 2019, 06:21:54 pm
I also listened to Alexey.Danilchenko using ArgyllCMS to drive the exact spectroscan that I am looking at.  Interface device not mentioned.

I am using https://www.tripplite.com/high-speed-usb-to-serial-adapter-keyspan~USA19HS/ - seems to work with ArgyllCMS on my Windows 10 laptop just fine.
Title: Re: Gretag Macbeth Spectophotometer - is it worth buying?
Post by: GWGill on August 15, 2019, 07:59:25 pm
I suspect the main problem is that there is not a Windows 10 compliant driver for the instrument.  The adapter is not the big problem here.
It's worth understanding how this stuff works. The operating system doesn't drive the instrument, it merely provides a conduit for communications between the application and the instrument. No system driver has more than trivial knowledge about a particular instrument (Serial - none at all, USB - VID/PID and maybe what USB pipes it uses). TonyW is on the right track - the issue appears to be about finding serial hardware that is supported by Win10. Once there is a working serial interface, any software that can run on Win10 should be able to talk to the instrument.