Gradient Universal Filter - 'DIC', DF, OL effects
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- Charles Krebs
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- Location: Issaquah, WA USA
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I just made your universal filter.
The first photo I made with my moonshaped blue stop filter.
The second is made with your filter.
This is just a quick one, I'm sure it can be much better.
Your filter works great. Thanks
Greetings
Jan
The first photo I made with my moonshaped blue stop filter.
The second is made with your filter.
This is just a quick one, I'm sure it can be much better.
Your filter works great. Thanks
Greetings
Jan
Byomic BYO500T microscope /CIOC XDS-1 invert.
Byomic ST-340 stereomicroscope
Olympus BHM Metallurgical Microscope
Canon EOS 7D Mark II / Canon MP-E65
Cognisys StackShot
www.ngvm.nl
Byomic ST-340 stereomicroscope
Olympus BHM Metallurgical Microscope
Canon EOS 7D Mark II / Canon MP-E65
Cognisys StackShot
www.ngvm.nl
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- Posts: 268
- Joined: Tue Jul 26, 2011 11:32 pm
- Location: The Netherlands
- Contact:
Lots of Micrasterias thomasiana, rotata, crux-melitensis and truncata in a pond about 15 km from my house.
Byomic BYO500T microscope /CIOC XDS-1 invert.
Byomic ST-340 stereomicroscope
Olympus BHM Metallurgical Microscope
Canon EOS 7D Mark II / Canon MP-E65
Cognisys StackShot
www.ngvm.nl
Byomic ST-340 stereomicroscope
Olympus BHM Metallurgical Microscope
Canon EOS 7D Mark II / Canon MP-E65
Cognisys StackShot
www.ngvm.nl
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- Posts: 2979
- Joined: Fri Nov 20, 2009 11:24 am
- Location: Panama
thank you (:
I'm trying to complete it, and someday it would be perfect to compare results. It is hard to imagine that this filter could be better than Nikon system... who knows?
My filter works great on lower magnifications, and when the specimen is big, for ex. water fleas, copepods, larvaes, big algaes etc. You can't get the same effect on 40x objective and higher /:
I'm trying to complete it, and someday it would be perfect to compare results. It is hard to imagine that this filter could be better than Nikon system... who knows?
My filter works great on lower magnifications, and when the specimen is big, for ex. water fleas, copepods, larvaes, big algaes etc. You can't get the same effect on 40x objective and higher /:
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- Posts: 268
- Joined: Tue Jul 26, 2011 11:32 pm
- Location: The Netherlands
- Contact:
Great pictures.
I read somewhere that this not will work if the NA factor of your objective is higher than 0.65
This filter works great and I think it is a little cheaper than the Nikon stuff.
I read somewhere that this not will work if the NA factor of your objective is higher than 0.65
This filter works great and I think it is a little cheaper than the Nikon stuff.
Byomic BYO500T microscope /CIOC XDS-1 invert.
Byomic ST-340 stereomicroscope
Olympus BHM Metallurgical Microscope
Canon EOS 7D Mark II / Canon MP-E65
Cognisys StackShot
www.ngvm.nl
Byomic ST-340 stereomicroscope
Olympus BHM Metallurgical Microscope
Canon EOS 7D Mark II / Canon MP-E65
Cognisys StackShot
www.ngvm.nl
it works but gives only 'traditional' obligue light, it works better on 100/1,25 than on 40/0,65. filters worked great on a nikon 40/0,55 LWD objective.Jan l'Amie wrote: I read somewhere that this not will work if the NA factor of your objective is higher than 0.65
I will post an image taken on a 100x objective.
yes, only a littleJan l'Amie wrote:This filter works great and I think it is a little cheaper than the Nikon stuff.
As I said I'm posting two images from high magnifications.
here is a very old image (meridion circulare), I do not remember filter I used, but it was before I invented my universal gradient filter. it is quite good anyway and confirms that assumption with high NA. that nikon LWD objective had NA 0,55, I regret that I sold it but I had to save for other microscope items I'm collecting.
pediastrum boryanum - universal filter on 100/1,25 - this is the best I can get, with PS postediting of course. it gives only obligue light here.
here is a very old image (meridion circulare), I do not remember filter I used, but it was before I invented my universal gradient filter. it is quite good anyway and confirms that assumption with high NA. that nikon LWD objective had NA 0,55, I regret that I sold it but I had to save for other microscope items I'm collecting.
pediastrum boryanum - universal filter on 100/1,25 - this is the best I can get, with PS postediting of course. it gives only obligue light here.