MicrobeHunter.com Microscopy Forum

Very nice photos. Thank you for sharing.

Very interesting. Thank you for sharing.

Interesting and informative read. Thank you Phil.

QCC, I guess an apple-to-apple comparison is never going to be fun as it requires scientific rigors and limiting variables down to minimal. I understand that you are into mineral and fossil. But your gabbro sample is probably difficult to use as a yardstick for comparison. It has too many details an...

QCC, polarizer/analyzer can be used to reduce surface light glare of metal particles. In that case, your overhead reflective light source should have one polarized filter and the other filter should be placed after objective and before eyes.

gekko, I may be mistaken, but I thought that one can remove any of those circular filter inserts from your Nikon phase turret condenser and put in DIY ones? Or at least you can use that empty bright field slot (if you don't mind losing regular bright field, that is)? With Rheinberg, you may take out...

Phil:
Great idea!
Of the items that you sent me, this was one of the things that impressed me most. Another thing was how well your packed the items.

Great photos. I especially like the pol and DIC. I think your oblique photo can be even better. Maybe try pushing the stop off center even more (for more contrast)? Did you use COL or simple oblique? If you were using COL, maybe try a bigger central stop? You may also try that GUF/UGF filter (basica...

I would like to buy your Nikon 1.2x Plan NA 0.03 objective (working distance 29.7 mm). Please let me know if you can sell me yours. I am located in Houston, Texas, USA. Zip code 77030. The objective should be the same as mentioned in this thread: http://www.photomacrography.net/forum/viewtopic.php?t...

^ Good catch! I was not aware of that.

Bill, Any printer will work - just download my jpeg template and print directly. I just don't have transparent sheets at home with me. So I will have to go to OfficeMax to print. I saw some clear projector sheets for sale, but those are a bit expensive (and I don't need much). Surprisingly, OfficeMa...

Bill, How to place GUF and how to check it can be found in the last post (with photos) in this thread: http://www.photomacrography.net/forum/viewtopic.php?p=173507#173507 From the post right above that last post, you can download my new template too. This template should work for most condensers. Th...

Well, please give it a try with what you have plus a LED flashlight or diffused camera flash. That way, at least you would be able to guesstimate if your LWD 40x can resolve the pores of catalyst? And does your LWD 40x says 0.17 (that means you need to put on cover slip)? Maybe suspend metal powers ...

houstontx, You may need to use epi illumination (epi light source, polarizer/analyzer and epi objectives). Adding that to your personal Olympus scope will be expensive. I am guessing you need to look at pores of your metal catalyst (unoccupied pore = available catalyst site, occupied = not usuable)?...

Bill, You have sharp eyes and did some great digging work! In theory, both of the products that you linked should work. My concern for the adapter you linked to is: It is $20, as opposed to my branded adapter at $50. Does Orion charge $30 just to stamp its brand name? I hope they are of the same qua...

Hi 75RR, If you read my thread again, you will find that the 3rd post links to a poor photo of mine that was out of focus (sorry I have not got time to take better pictures, but based on visual observation, I can tell you that GUF [gradient universal filter] is very capable if you optimize it in you...

Bill, I use these two LED headlamps: http://www.amazon.com/gp/product/B00SWQXY1G?psc=1&redirect=true&ref_=oh_aui_search_detailpage http://www.amazon.com/gp/product/B00GFMA35Y?psc=1&redirect=true&ref_=oh_aui_search_detailpage They fit under the stages of most microscopes, once you take off the straps...

Bill and Chris,

Please kindly check and reply the private messages that I sent to you. Thank you!

Cheers,
Fan

Have you compared the biodiversity between your filter vs a plant from the tank? Filter may concentrate lighter floating protist, as opposed to sinking/attaching protists. I am guessing you will see a lot protists attached to plants as well. Such as hydra, ostracod, water bear and whatever that is b...

Probably not. The subject protist itself may be thicker in the center and not flat. Your image looks great as it is.

Chris, Shall all four of us have a meet at Kurt's place in League City? It is going to be lots of fun! You are I are probably 15 minutes of driving from each other. Kurt does not want to drive to Houston. Bill, what do you think? You live outside the 610 loop too and not far from League City, right?...

Thank you Bill. Maybe because my low post count, I still could not find/access PM (I tried to "compose PM" and was told that I cannot do it yet) . I will try to contact Oliver I guess.

Sorry for diverting your topic houstontx.

Edit: How funny, that PM button appear right after I posted my 3rd post.

Hello houstontx and Kurt! I am in Houston (77030) area too. I am guessing houstontx' service place is Land Sea and Sky - I have been there many times. I would be interested to know the used scope dealers in Houston though. I know many eBay'er buy scopes from auctions for about $9 a piece (usually a ...

Hi Everyone, Thank you for viewing my thread. I am new here but I post a lot more at photo macrography.net under the same user name. I used microscope professionally as a PhD microbiologist. I have three objectives for sale or trade: 1) Nikon 20x NA 0.40 160/0.17 E Plan objective - $129 (I bought it...