On 8/22/2010 8:15 PM, usher99@xxxxxxx wrote:
> What is the best way to clean this? I think Moose finally had to clean his
> 5D sensor and just used a blower IIRC. I can't find his post.
------------------------------------ 7/4/10
"A few months ago, I finally tried the brush technique you recommend. Can't say
I'm wild about it. I followed the
instructions carefully. First pass went pretty well, but left some stuff.
Second pass, I seem to have somehow got some
oily stuff on the brush; must be from the mirror chamber. Anyway, it left
smears and some dust stuck to it. I did get it
cleaned up without any damage, using lintless wipes and solvent, but it was a
pain.
When processing some recent images, I had to do a fair amount of spotting (and
found a way to make 'em disappear in
uniform areas without detail). Time to clean, yuck! Yesterday, I decided to try
something everybody seems to condemn. I
took a partially used can of Dust-Off, held it vertically, both criteria so
there would be no liquid spray, and blew the
heck out of the sensor.
I thought the Rocket squeeze duster worked OK when I've tried it, but it didn't
get nearly everything and I eventually
had to try something more powerful. That's when I tried the brush. The hand
blower has nothing like the directed power
of the can.
I may have taken a risk, but I was rewarded. 50 mm, f22, the cleanest I think
it's ever been. Nothing, I mean NOTHING to
see but some very minor stuff in the farthest corners."
Next time it needs cleaning, I'll start with more careful work on the corners.
When this can gets emptier yet, I'm going
to start another one for other use, and keep one that's even safer from liquid
spray just for sensors.
Like cliff diving and playing with fire, I absolutely do not recommend this
technique to anyone else. I can't afford to
replace your sensor if you screw it up. "
--------------------------------------
I've also used a SensorPen, by the LensPen folks. It actually worked pretty
well, though I felt a bit insecure wiping
the business end around on the sensor. As with the other techniques and tools
I've used, there were multiple cycles of
clean, shoot test, clean, repeat.
Nothing I've done before has come close to the results of the ostensibly
'high-wire without a net' act with the mostly
empty can of Dust-Off. One treatment, test shot shows all done.
> Is this one better than most?
> http://www.bhphotovideo.com/c/product/541904-REG/Giottos_AA1903_Rocket_Air_Blower_.html
That's the brand I have. If you're really in a rush, an ear syringe from any
pharmacy blows rather well, just doesn't
have the valves to suck air in through the back.
> I recall Chuck's use of the Swiffer after vacuuming the end to remove loose
> particles. He posted a step by step a few years ago, but couldn't find it.
I'm under the impression he has moved on to the brush technique. Maybe he uses
both? If wiping the sensor directly, to
get something stuck off, I would try the SensorPen before going the Swiffer
route.
> I believe he also mentioned Eclipse. I fear this big whatever may be too
> large to clone out of some images.
If it's really big, I think it's more likely to be something light, and thus
easily blown out with air.
Moose
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