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Occasional Contributor
Posts: 17
Registered: ‎03-25-2018

Re: SX60 auto focus problem at high zoom

Here's one I took @ full optical zoom mid day had held no filters.
Super Contributor
Posts: 150
Registered: ‎07-18-2013

Re: SX60 auto focus problem at high zoom


@dbhuff49 wrote:
Here's one I took @ full optical zoom mid day had held no filters.

Hi - I'd like to see it too? - Where is it?

 

Cheers

 

G

Honored Contributor
Posts: 7,960
Registered: ‎08-13-2015

Re: SX60 auto focus problem at high zoom


@ojreichman wrote:

Waddizzle - any thoughts about the removal of the polarizer affecting the focus, other than just (just?) increasing the light a couple of stops?

 

Thanks,  Jim


Many image sensors work by comparing contrast on different phases of light.  A polarizer removes out of phase light.  I have had a couple of DSLR lenses that did not like CPL of UV filters.  All I use now are CLEAR protective filters on lenses.

37F7705F-371F-4185-A92C-9E521A78427C.jpeg

Suddenly, all of my colors improved.

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Occasional Contributor
Posts: 8
Registered: ‎02-03-2019

Re: SX60 auto focus problem at high zoom

Interesting, thanks again.

Occasional Contributor
Posts: 6
Registered: ‎04-09-2019

Re: SX60 auto focus problem at high zoom

That’s very interesting. I had my polarizing filter on as well when I experienced the auto focus “confusion”, as though not finding the subject to focus on and then settling for the blurry image.
Occasional Contributor
Posts: 6
Registered: ‎04-09-2019

Re: SX60 auto focus problem at high zoom

That’s very interesting. I had my polarizing filter on as well when I experienced the auto focus “confusion”, as though not finding the subject to focus on and then settling for the blurry image. I shoot boats on Caribbean waters and I love the polarizing affect, but at high zooms the auto focusing is hit or miss.
Honored Contributor
Posts: 7,960
Registered: ‎08-13-2015

Re: SX60 auto focus problem at high zoom

At very long focal lengths, you need to hold the camera really steady for it to focus. Even better, use a tripod.
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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
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Super Contributor
Posts: 150
Registered: ‎07-18-2013

Re: SX60 auto focus problem at high zoom

[ Edited ]

SX60hs. Shot through green foliage. Blue London Skies. CircPola. Hand held. Chimneys 80 metres away. Auto Focus popped then shot. Look at the detail on the TV antenna, I can almost make out the threads on the Wing-nut bolts!  

 

0D5549E3-0743-4011-A3AC-38C3F50D7598.jpeg

 

 

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