leica1215 Posted September 28, 2015 Share #1 Posted September 28, 2015 Advertisement (gone after registration) I just bought 50aa last week , for some reason I found the rear lens kinda greasy, when I clean it left swirl kind mark and kinda greasy I guess, I have only use the sensor swab products only. It seems the pec pad tissue left smear. Any advise ? Thanks Quote Link to post Share on other sites More sharing options...
Advertisement Posted September 28, 2015 Posted September 28, 2015 Hi leica1215, Take a look here Lens greasy cleaning tips. I'm sure you'll find what you were looking for!
jaapv Posted September 28, 2015 Share #2 Posted September 28, 2015 I use a fiber cloth with a few drops of Eclipse on it in such cases. 1 Quote Link to post Share on other sites More sharing options...
LocalHero1953 Posted September 28, 2015 Share #3 Posted September 28, 2015 +1 1 Quote Link to post Share on other sites More sharing options...
rodoleica Posted September 28, 2015 Share #4 Posted September 28, 2015 I use a fiber cloth with a few drops of Eclipse on it in such cases. Quote Link to post Share on other sites More sharing options...
TomB_tx Posted September 28, 2015 Share #5 Posted September 28, 2015 "Kodak" lens tissue and lens cleaning fluid - now sold by Tiffen, who used to make them for Kodak. 1 Quote Link to post Share on other sites More sharing options...
Tony Mac Posted September 29, 2015 Share #6 Posted September 29, 2015 I like using Pancro cleaning fluid and either Kimwipes or Rosco lens tissue. Proper procedure is after blowing off the dust with air, lightly moisten the tissue with the cleaning fluid and wipe in a circular motion from the center to the edge. Don't apply the cleaner directly to the lens surface, it can cause damage in rare cases. 1 Quote Link to post Share on other sites More sharing options...
hiepphotog Posted September 29, 2015 Share #7 Posted September 29, 2015 Advertisement (gone after registration) Lensrentals uses ROR for grease removal on lens element and I have been using the same thing for about 3 years now. Kimwipes is also better than the regular microfiber since they're always fresh. Then you can do another wipe with Purosol, another miracle solution for optics. I have tried a bunch, but these two are the best. 1 Quote Link to post Share on other sites More sharing options...
leica1215 Posted September 30, 2015 Author Share #8 Posted September 30, 2015 what about lenspen? I found when use it on other less costly less it cleans very well, I just have not yet try on this one yet. I wonder if lens coating is more fragile than eye glasses coating? I often just use tissue to wipe it, barely have scratches thanks in advance Quote Link to post Share on other sites More sharing options...
Schrödinger's cat Posted September 30, 2015 Share #9 Posted September 30, 2015 This outfit in the US says they clean about 500 lenses on a busy day. http://www.lensrentals.com/blog/2011/05/the-lensrentals-lens-cleaning-methods I think I gotta go with the experience 1 Quote Link to post Share on other sites More sharing options...
leica1215 Posted September 30, 2015 Author Share #10 Posted September 30, 2015 thanks,very help information Quote Link to post Share on other sites More sharing options...
hiepphotog Posted September 30, 2015 Share #11 Posted September 30, 2015 what about lenspen? I found when use it on other less costly less it cleans very well, I just have not yet try on this one yet. I wonder if lens coating is more fragile than eye glasses coating? I often just use tissue to wipe it, barely have scratches thanks in advance I admit I have about 20 lenspens that I bought in bulk on eBay . For grease, it doesn't work as well as ROR. I use it to touch up the rim area of the front element. If your front element is dry, don't use lenspen on it cause there will be too much friction. Only use it after ROR/Purosol has been applied. Quote Link to post Share on other sites More sharing options...
dkCambridgeshire Posted December 16, 2016 Share #12 Posted December 16, 2016 (edited) If you're interested in what appears to be THE best lens cleaning technique, have a look at Astronomy Now magazine's January 2017 edition (published this week in the UK) and the 3 page article documenting 'First Contact' polymer cleaning. The principle is similar to the OptiClean polymer lens cleaning method, but the various 'First Contact' kits provide additional options for 'stubborn' soiling including a liquid pre-treatment, special applicators. 'O' rings and lifting tools - latter to remove the polymer after it has 'set'. Astronomy Now magazine's Steve Ringwood cleaned several different optics including an ancient 1970s 5.25" refractor, a 50mm Lanthanum eyepiece, and a 10" diameter primary mirror which had been stored in a damp garden shed with resultant debris soiling. The soiled mirror lens cleaned up beautifully. First Contact, manufactured by Photonic Cleaning Technologies, is used to clean the LIGO gravity wave detector. The kits are expensive i.e. over £100 but enable cleaning standards far in excess of that possible with regular liquid cleaners and micro fibre cloths. dunk Edited December 16, 2016 by dkCambridgeshire 1 Quote Link to post Share on other sites More sharing options...
pgk Posted December 16, 2016 Share #13 Posted December 16, 2016 The principle is similar to the OptiClean polymer lens cleaning method, Which I have used and I still have some bottles left. I think that it was Hasselbald who recommended it in the past but my memory may be wrong. Anyway it appears to be still available and is cheaper than a kit should anyone want some. I found this source easily enough on the web but don't know them: http://shop.stanwaxlaser.co.uk/first-contact-polymer-optics-cleaner---opticlean-1-p.asp 2 Quote Link to post Share on other sites More sharing options...
david strachan Posted December 16, 2016 Share #14 Posted December 16, 2016 Very very rarely clean my lenses, a fine "camel" hair brush or blower is enough. A lens hood keeps a lot of gunk off your lens. Grease is another matter though. Quote Link to post Share on other sites More sharing options...
dkCambridgeshire Posted December 16, 2016 Share #15 Posted December 16, 2016 (edited) Which I have used and I still have some bottles left. I think that it was Hasselbald who recommended it in the past but my memory may be wrong. Anyway it appears to be still available and is cheaper than a kit should anyone want some. I found this source easily enough on the web but don't know them: http://shop.stanwaxlaser.co.uk/first-contact-polymer-optics-cleaner---opticlean-1-p.asp Stanwax is one of the suppliers mentioned in the article - as is 365Astronomy. The kits available from £93 upwards include more than one bottle of polymer (4 bottles are illustrated in the kit article) plus applicator and lifting tools but single bottles can also be purchased. There is also a starter / sample kit priced £4.80 "1 small bottle of about 3-5ml with applicator and dental floss to remove the dried polymer" which would be sufficient for at least one small / medium sized camera lens http://www.365astronomy.com/Photonic-Cleaning-Technologies/ The lenses cleaned in the article were in a very soiled state; one required an additional application of the 'WSP1 'stain remover' plus another application of the polymer to remove all the accumulated soiling. The kits are not everyday lens cleaning tools but anyone who has used the similar OptiClean in the past will likely vouch for the polymer's thoroughness. Care is required to prevent the polymer spreading into the lens perimeter - but the kit includes a mesh lifting tool to deal with this contingency. dunk Edited December 16, 2016 by dkCambridgeshire 1 Quote Link to post Share on other sites More sharing options...
jdlaing Posted December 16, 2016 Share #16 Posted December 16, 2016 Zeiss cleaning wipes. Available at Walmart Quote Link to post Share on other sites More sharing options...
Echo63 Posted December 16, 2016 Share #17 Posted December 16, 2016 I use a lenspen on my lenses. brush loose dust/grit off with the brush end. Fog lens with breath. wipe with wipe end of lenspen brand new lens pens will need another wipe with the brush, to get rid of the excess graphite dust. Quote Link to post Share on other sites More sharing options...
lct Posted December 16, 2016 Share #18 Posted December 16, 2016 what about lenspen? I found when use it on other less costly less it cleans very well, I just have not yet try on this one yet. I wonder if lens coating is more fragile than eye glasses coating? I often just use tissue to wipe it, barely have scratches [...] I use lenspen on lenses and sensors but not for greasy traces. I much prefer Eclipse for that. Quote Link to post Share on other sites More sharing options...
pgk Posted December 16, 2016 Share #19 Posted December 16, 2016 "Kodak" lens tissue and lens cleaning fluid - now sold by Tiffen, who used to make them for Kodak. Zeiss cleaning wipes. Available at Walmart Anything which 'wipes' the lens risks scratching it if there is any 'hrad' dust on the lens as this can be dragged across the surface and cause damage - especially on older lenses with softer coatings. I would suggest a very soft sable brush if there is dust which needs removing and soft air pressure (blowing) won't clear it. Softly pushing the brush hair under the dust will allow it to be removed with far less risk. Quote Link to post Share on other sites More sharing options...
tobey bilek Posted December 16, 2016 Share #20 Posted December 16, 2016 If you're interested in what appears to be THE best lens cleaning technique, have a look at Astronomy Now magazine's January 2017 edition (published this week in the UK) and the 3 page article documenting 'First Contact' polymer cleaning. The principle is similar to the OptiClean polymer lens cleaning method, but the various 'First Contact' kits provide additional options for 'stubborn' soiling including a liquid pre-treatment, special applicators. 'O' rings and lifting tools - latter to remove the polymer after it has 'set'. Astronomy Now magazine's Steve Ringwood cleaned several different optics including an ancient 1970s 5.25" refractor, a 50mm Lanthanum eyepiece, and a 10" diameter primary mirror which had been stored in a damp garden shed with resultant debris soiling. The soiled mirror lens cleaned up beautifully. First Contact, manufactured by Photonic Cleaning Technologies, is used to clean the LIGO gravity wave detector. The kits are expensive i.e. over £100 but enable cleaning standards far in excess of that possible with regular liquid cleaners and micro fibre cloths. dunk I would bet this is the same product repair people use to clean SLR mirrors. Zeiss works well on grease as it is made for eyeglasses which can get greasy. Liquid in spray bottles at Sam`s Club. Premoistened wipes in foil packs at Walmart. Go to optics section in either. Quote Link to post Share on other sites More sharing options...
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