Cap'n Fishy
Suspended / Banned
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- Name
- Colin
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Wondered if anyone else had encountered a strange noise from their Canon 1st generation (2-stop) image stabilisation lens. The lens I used to get it from was the 28-135 mm IS USM, which I have since sold. To get the noise, you needed to be in servo AF, with IS switched on. Holding down the back button to switch both on, then tracking the subject, I would sometimes get an extra noise on top of the usual nice quiet reassuring 'ticky-ticky' of the IS and 'shush-shush' of the AF. The extra noise is intermittent, just giving the odd burst, and sounded like a watered down version of missing a car gear change. Not as bad as it sounds, but it's the best analogy I can think of.
The noise was never heard using just servo AF with no IS and was never heard when using IS in one-shot AF mode.
The performance of the lens, both AF and IS was unaffected and I used it like that for a long time. I was thinking it was a one-off on that lens until just recently, when my 100-400 IS made the same noise - again when continuous servo and IS were engaged and held on together. I have had the 100-400 for 4 years or so, and this is the first time it has made this strange noise.
I have used 3-stop and 4-stop IS lenses and never heard this noise, so I am wondering if it is some quirk of the early system???
Col
The noise was never heard using just servo AF with no IS and was never heard when using IS in one-shot AF mode.
The performance of the lens, both AF and IS was unaffected and I used it like that for a long time. I was thinking it was a one-off on that lens until just recently, when my 100-400 IS made the same noise - again when continuous servo and IS were engaged and held on together. I have had the 100-400 for 4 years or so, and this is the first time it has made this strange noise.
I have used 3-stop and 4-stop IS lenses and never heard this noise, so I am wondering if it is some quirk of the early system???
Col