Sensor dust

jacktjk · May 12, 2020

Hi all Sony bros..
My a7r3 every time need to clean the sensor dust , how come last time my Canon 5d3/5d4, don't have this problem ?? Any bros feel the same like me ?

fuwen · May 12, 2020

Maybe the reflex mirror does block some dust.

The old film camera Canon A1 never bother about dust one hahaha

jacktjk · May 12, 2020

fuwen said:
Maybe the reflex mirror does block some dust.

The old film camera Canon A1 never bother about dust one hahaha

Bro .. Canon A1 using film lar.
CANON 5D4 is a digit camera ( Dsir). Sensor never see any dust..
My other camera Fuji XT2, so many years never see any dust on sensor also. Only this A7r3, just wonder u all need clean dust for A7r3..

Octarine · May 13, 2020

DSLR has a shutter that covers the sensor. Mirrorless is always open. Wait.. wasn't there a firmware update from Sony that allow the shutter to close..?

jacktjk · May 14, 2020

Octarine said:
DSLR has a shutter that covers the sensor. Mirrorless is always open. Wait.. wasn't there a firmware update from Sony that allow the shutter to close..?

Dsir don't have shutter close down when changing lens , only the reflex mirror in front of the sensor ..
but Canon eos R when changing lenses, a shutter close down so the sensor cover block the dust to go in .. our Sony don't have, easy to collect dust..

Octarine · May 14, 2020

jacktjk said:
Dsir don't have shutter close down when changing lens , only the reflex mirror in front of the sensor ..

Do you want to check again, please? On DSLR, the shutter is closed always. It only opens when you press the shutter button and after the mirror has flipped up.
When you change lenses, flip up the mirror carefully and you will see the shutter curtains.

jacktjk · May 18, 2020

Octarine said:
Do you want to check again, please? On DSLR, the shutter is closed always. It only opens when you press the shutter button and after the mirror has flipped up.
When you change lenses, flip up the mirror carefully and you will see the shutter curtains.

Ya.. my bad , long time never touch Dsir liao .. now only use mirrorless camera, Lol.
Just wonder how long u need to clean your Sony a7 xx sensor? With air blower Or ?

fir86 · Apr 29, 2021

jacktjk said:
Ya.. my bad , long time never touch Dsir liao .. now only use mirrorless camera, Lol.
Just wonder how long u need to clean your Sony a7 xx sensor? With air blower Or ?

Yup..

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