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HITACHI HD6417662

 
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Olympusman



Joined: 15 Jan 2012
Posts: 4272

PostPosted: Sun Jan 27, 2019 1:11 pm    Post subject: HITACHI HD6417662 Reply with quote

40X objective. I had a very close call on this objective yesterday. I was setting up a chip for oil immersion and got distracted and didn't rotate the 100X oil into position. Instead, my 40X NIKON got an oil miniscus. Cleaned it right away with Xylol and a number of different lens cleaning solutions and now it is back.



100X Oil




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Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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Sumguy01



Joined: 28 Jan 2013
Posts: 1381
Location: Ketchikan Alaska USA

PostPosted: Sun Jan 27, 2019 5:31 pm    Post subject: Reply with quote

Very Happy I hate it when that happens.
Nice pics.
Thanks for sharing.
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Beatsy



Joined: 05 Jul 2013
Posts: 1535
Location: Malvern, UK

PostPosted: Mon Jan 28, 2019 4:13 am    Post subject: Reply with quote

Probably setting myself up for a fall, but I've managed to avoid that particular accident.

You're getting some great resolution and sharpness with that oil objective. Makes it worth the extra setup and cleaning, eh? For a while at least... Smile
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Olympusman



Joined: 15 Jan 2012
Posts: 4272

PostPosted: Tue Jan 29, 2019 9:14 am    Post subject: Oil Objective Reply with quote

Oil immersion was uncomfortable to me for a long time. But now that I have set up a routine for the cleanup it isn't that difficult. I rinse the chips off by swirling them in Xylol in a jar. As for the objective, I always remove it from the scope, stand it on the threaded end and put a drop of Xylol on it to remove the oil, wipe it with a lens tissue and clean it again with another drop of Xylol.

Mike
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Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA
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