Jump to content

  • Log in with Facebook Log in with Twitter Log in with Windows Live Log In with Google      Sign In   
  • Create Account

Submit your paper to J Biol Methods today!
Photo
- - - - -

Looking for good colony counter


  • Please log in to reply
3 replies to this topic

#1 Thensome

Thensome

    member

  • Active Members
  • Pip
  • 5 posts
0
Neutral

Posted 27 June 2011 - 12:11 AM

Hi all.
Hope this is the correct sub forum.

We are looking for a cheap-ish and good colony counter. Found this one:
http://www.biologics...ter_models.html

However they don't answer mail, news section on website is from 2008. Makes me suspicious.

Anyone know this brand?
Or maybe you know of a good one in the same prize range?

Thank you, and have a nice day.

#2 bob1

bob1

    Thelymitra pulchella

  • Global Moderators
  • PipPipPipPipPipPipPipPipPipPip
  • 5,603 posts
385
Excellent

Posted 27 June 2011 - 01:51 AM

If you have a gel doc or similar camera to take pictures of your plates, ImageJ (freeware from NIH) can do the job quite well.

#3 Thensome

Thensome

    member

  • Active Members
  • Pip
  • 5 posts
0
Neutral

Posted 27 June 2011 - 03:37 AM

If you have a gel doc or similar camera to take pictures of your plates, ImageJ (freeware from NIH) can do the job quite well.


We tried that with a regular camera, did not work that well for us. We have large number of colonies sometimes. But, thanks for the tip.

#4 mike.sh

mike.sh

    member

  • Active Members
  • Pip
  • 6 posts
1
Neutral

Posted 27 June 2011 - 05:10 AM

All these colony counters do the same thing as bob1 told but with built-in software (which also requires calibration). So maybe you should develop a processing pipeline in ImageJ that will be optimal for your photos.

Anyway if there are lots of colonies and they overlap it maybe impossible to resolve them using any algorithm (including one in commercial colony counter). In such case you can calculate something like integral colony area, etc.




Home - About - Terms of Service - Privacy - Contact Us

©1999-2013 Protocol Online, All rights reserved.