DPReview.com is closing April 10th - Find out more

RF 85mm f2 macro lens idle noise

Started Dec 23, 2020 | Questions thread
thunder storm Forum Pro • Posts: 10,139
Re: RF 85mm f2 macro lens idle noise

R2D2 wrote:

thunder storm wrote:

R2D2 wrote:

Completely normal. The IS is always “spun up.”

R2

I wonder what's actually happening when you have it turned off. I mean, if it never is off, why is there a switch?

The switch is there so you can decide when to activate the IS, otherwise with these newer IS systems it seems to idle like an automobile engine. The switch is like your gas pedal.

That's an analogy giving me the feeling i understand what's going on.    Thanks.

I have seen a theory that the switch also parks the lens (when switched off).

Ah, nice, another thing to speculate about.

R2

-- hide signature --

I love 50mm (equivalence)

 thunder storm's gear list:thunder storm's gear list
Canon EOS 6D Canon EOS M6 II Canon EOS R5 Sony a7 IV Canon EF-S 15-85mm f/3.5-5.6 IS USM +24 more
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow