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Pete Ganzel | all galleries >> Tinkering >> Fungus Removal Sigma 400mm APO > Etched Coating 260.jpg
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01-FEB-2010

Etched Coating 260.jpg

One side or the other of the 6th group may have fungus or hazing.
Fungus itself can be removed with household ammonia.
This shows an element with the fungus removed but shows the faint etching left behind.
If not too severe these dull areas can be polished till shiny.

Konica-Minolta DiMAGE A2
1/125s f/3.5 at 50.7mm iso100 hide exif
Full EXIF Info
Date/Time01-Feb-2010 00:01:36
MakeMinolta
ModelDiMAGE A2
Flash UsedNo
Focal Length50.7 mm
Exposure Time1/125 sec
Aperturef/3.5
ISO Equivalent100
Exposure Bias
White Balance
Metering Mode
JPEG Quality
Exposure Programmanual (1)
Focus Distance

other sizes: small medium large original auto
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