Search results for 'sensor cleaning' - page 138
Lens Cleaning
I've never used it before, but it supposed to be the best.. ROR... I've just ordered some from Eddie Houston on ebay and I don't think he'd recommend anything that wasn't as good as he says it is £15.19 delivered The claims for that product are extraordinary. Has anyone used it?
Posted by ChrisA on 08/10/2011 - 09:38
Lens Cleaning
I have never heard of ROR but a quick look on the WEB suggests you may be on to something. Might give it a try myself if you get get good results. Please can you let me know how you get on? Regards David
Posted by davidrobinson on 08/10/2011 - 09:39
Lens Cleaning
A stop and a half extra? hmmmmm
Posted by dougf8 on 08/10/2011 - 10:27
Lens Cleaning
I follow the usual advice for cleaning both the front and rear surfaces of a lens. Some dust is actually harder than glass and _will_ scratch the glass or coating it if it is rubbed in to the lens surface with a cloth, so I follow this cleaning procedure: 1) Use rocket blower to get rid of loose d...
Posted by JohnE on 08/10/2011 - 10:34
Lens Cleaning
I follow the usual advice for cleaning both the front and rear surfaces of a lens. Some dust is actually harder than glass and _will_ scratch the glass or coating it if it is rubbed in to the lens surface with a cloth, so I follow this cleaning procedure: 1) Use rocket blower to get rid of loose d...
Posted by davidrobinson on 08/10/2011 - 10:47
Lens Cleaning
The endorsement in that link is so preposterous that for me it weakens any claim the stuff might have - it makes it looks like a scam. Which would be a shame if it is simply a good cleaner.
Posted by karma mechanic on 08/10/2011 - 12:44
Lens Cleaning
The endorsement in that link is so preposterous that for me it weakens any claim the stuff might have - it makes it looks like a scam. Which would be a shame if it is simply a good cleaner. Well he's been selling it for a few years now and considering that his main business is expensive lens convers...
Posted by Algernon on 08/10/2011 - 13:16
Lens Cleaning
"Awesome stuff. Crystal clear glass. I won't use anything else now." The thing is, you never know whether the feedback comments are genuine with things like that. FAWK, he just asks people to write some nice comments, or he makes it up. A stop and a half? For goodness sake... that implies that ...
Posted by ChrisA on 08/10/2011 - 13:25
Lens Cleaning
What's wrong with using a normal microfibre cloth? I don't use snake oil on my lenses ;p
Posted by Pentaxophile on 08/10/2011 - 14:22
Lens Cleaning
What's wrong with using a normal microfibre cloth? I don't use snake oil on my lenses ;p They don't remove anything. Cotton seems better I still have some 25 year old Selvyt cloths (washed many times) and resort to them when microfibre doesn't work. Selvyt have been around for quite some tim...
Posted by Algernon on 08/10/2011 - 14:36
Lens Cleaning
ROR certainly sounds a very good product and has worldwide distribution too. Cheaper than on ebay.
Posted by Mannesty on 08/10/2011 - 17:04
Lens Cleaning
Using chemicals of any sort is a last resort and simple Kodak lens cleanher when necessary is at least aimed at the job and not as a multi-pupose clean-anything item. The spiel reminds me of those American ads on satellite TV for various miracle products - setting fire to car bonnets to prove how go...
Posted by johnriley on 08/10/2011 - 17:21
Lens Cleaning
They don't remove anything. Just how dirty are people's lenses? :shock: Microfibre cloths will certainly lift and trap fluff and dust, and remove finger prints very effectively, without the anxiety of using chemicals that might affect lens coatings or leave a residue.
Posted by Pentaxophile on 08/10/2011 - 17:55
Lens Cleaning
The surface of glass is porous and you can tell that from a new lens, the cloth actually squeaks when you first wipe it across within weeks muck from the air starts to fill the pores in and any attempts to clean it with a soft cloth compacts more muck than it removes. The best cleaner would prob...
Posted by Algernon on 08/10/2011 - 18:15
Lens Cleaning
The surface of glass is porous How can this be true of Pentax SMC lenses? SMC was 7 coats according to - how can it possibly be still porous? ... and you can tell that from a new lens, the cloth actually squeaks when you first wipe it across How is this evidence for pores? I can believe it's ...
Posted by ChrisA on 08/10/2011 - 18:26
Lens Cleaning
As far as I know glass is effectively a supercooled fluid and it is not porous. There may be small depressions/"pores"/imperfections in the surface of the glass. When I think porous, I think terracotta or pumice. My BS detector is trembling almost as much as when I heard the price of th...
Posted by dougf8 on 08/10/2011 - 18:42
Lens Cleaning
Glass is made from the same material used in sandpaper :shock: If it was a solid you wouldn't be able to see through it! :mrgreen: Lenses have been ground and polished using methods that will leave slight grooves and break off minute pieces of glass. I'm off to drink some 'Codswallop' anyway...
Posted by Algernon on 08/10/2011 - 19:50
Lens Cleaning
As dougf8 discovered from reading the link in his most recent post, glass is not a super-cooled liquid, but an amorphous (non-crystalline) solid. For the inveterately curious, a comprehensive review of the physical and chemical properties of glass can be found here: The surface of glass is poro...
Posted by prsjnb on 08/10/2011 - 21:37
Lens Cleaning
I have some radio valves (with glass envelopes) that were manufacture during WW2 and they still work ie they still have a vacuum inside them. Surely if porosity was a problem then gas would leak in (it does very very very slowly and the valves eventually cease to work. Note also that the glass in...
Posted by Frogherder on 08/10/2011 - 23:04
Lens Cleaning
The OP just asked about cleaning lenses :shock: It seems that no one knows the difference between clean glass and dirty glass :shock: :mrgreen: I suppose porous is a bit too broad to describe the surface of glass? :shock: The correct term is hydrophilic The surface of glass when greatly ...
Posted by Algernon on 09/10/2011 - 12:23
