Ben Horne Offline Image Upload: On
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p.2 #6 · Lens Pen vs Artic Butterfly | |
Cableaddict wrote:
Ben Horne wrote:
The glass that covers the sensor is quite thick.... on the order of about 2.5mm. You would have to take a chisel to crack it.
Absolutely not true. Just do a search here on FM. There have been several reports from experienced users who cracked their sensors, and they weren't really bearing down.
It is evidently safe as long as you are constantly, 100% vigilant about using the lightest pressure possible, but mistakes happen.
You will also find, if you read past threads, that the coating on some 5D HPF's was not done right at the factory. Not enough heat, evidently. It can thus be removed with certain cleaners. I believe (don't quote me) that E2 fluid is regarded as safe, even for these "defective" filters, but you probably want to be even gentler if you're cleaning a 5D.
Absolutely not true? If you're going to make such a bold statement, please post some references with photos of these cracked sensors as well as reports from the experienced users to back it up. I have seen people scratch the glass filter by using "experimental" cleaning methods, or by using bad technique, but I have not seen a cracked one.
I have a sensor that I pulled out of a digital SLR, and the glass on it is 2.5mm thick. If you were to crack this piece of glass, that amount of force would likely blow the sensor through the back of the camera. It would literally take a hammer and chisel to crack the glass filter.
Edited on Aug 16, 2008 at 02:04 AM
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