Re: Optical illusion or what? Re- IS
The Wren is quite sharp Ant.
The Wren is quite sharp Ant.
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Canon 6D; Canon 760D;Canon G15;Canon 40mm f2.8(Pancake);Canon 50mm f1.8(ii); Canon 17mm-40mm f4L;Canon EF-S 10-18mm f4.5-5.6 IS STM;Canon EF-S 55-250mm f4-5.6 STM lens;Canon 24mm-105mmf4L IS;Canon 70-300mm f4-f5.6 L IS USM;Kenko 1.4x HD TC;Canon 430EX ii flash;Giottos tripod;Manfretto monopod;Cokin P filters + bits and pieces!
www.flickr.com/photos/nathaniel3390
North Wales where music and the sea give a great concert! -
Re: Optical illusion or what? Re- IS
Hi Nat; some wise words from our esteemed members... One other thing to consider, more so when using slower lenses (say f/5.6 or less) is that using IS will slow down AF. I.e the time it talks to acquire focus-lock is extended when using IS. That again 'may' be a reason why you're seeing softer images; AF 'may' not have locked-on accurately!
I'm with Colin; I have IS switched OFF by default. It's only a tool in out armoury that we can use 'if' the need arises; its use is not 'mandatory' which many users appear to see as the case. I.e if it's there - it must be used. I treat it the same as high-ISO; only to be used when absolutely necessary!
Good luck playing...Cheers;
Lee
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All fair comment & critique will always be welcomed !
5D3, 80D, 40D (IR), G3X
17-40 f/4, 24-105 f/4, 70-200 f/2.8, 100-400 f/4.5-5.6, 100 f/2.8 Macro, Sigma 150-600 SportComment
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Re: Optical illusion or what? Re- IS
You are quite right Lee. I am now using IS only when I want to, esp as you say, at slow shutter speeds. It is a tool to prevent camera shake and not subject movement!Canon 6D; Canon 760D;Canon G15;Canon 40mm f2.8(Pancake);Canon 50mm f1.8(ii); Canon 17mm-40mm f4L;Canon EF-S 10-18mm f4.5-5.6 IS STM;Canon EF-S 55-250mm f4-5.6 STM lens;Canon 24mm-105mmf4L IS;Canon 70-300mm f4-f5.6 L IS USM;Kenko 1.4x HD TC;Canon 430EX ii flash;Giottos tripod;Manfretto monopod;Cokin P filters + bits and pieces!
www.flickr.com/photos/nathaniel3390
North Wales where music and the sea give a great concert!Comment
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Re: Optical illusion or what? Re- IS
The steady image that IS gives on the sensor is suppose to improve AF accuracy.
Personally I've never seen a negative effect using IS at any shutter speed.
If having turned off works for you Nat that's great.Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
https://www.flickr.com/photos/16830751@N03/Comment
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Re: Optical illusion or what? Re- IS
as i said earlier its more likely to be user error than i.s playing up .without being offensive nat at your tender age and with weight carrying/lifting problems re your gear i would definitely leave i.s switched on .i certainly never switch it off on mineComment
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Re: Optical illusion or what? Re- IS
Based on Jeff's comments Nat it would be good to look at some of your images where you think there is an issue and establish which AF point was used to achieve focus.
Generally, the wren image posted is an example, I use the single centre AF point where the scene is cluttered.
I certainly have some age related issues with hand holding, particularly at longer focal lengths so the use of IS to reduce camera shake is a boon.Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
https://www.flickr.com/photos/16830751@N03/Comment
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Re: Optical illusion or what? Re- IS
Quite an interesting article particularly about AF.
Canon 5D3, 7D2, 60D, Canon 70-200L f2.8 IS II, Canon 300 f4L IS, Canon 16-35 f4 L, Canon 24-105mm f/4L IS USM, Canon 1.4 MkIII extender, Sigma AF 10-20mm f/3.5 EX DC HSM, Sigma 150-600 Contemporary, Tamron SP AF 70-300 F/4-5.6 Di VC USD, Canon EF-S 18-55mm 1:3.5-5.6 IS
https://www.flickr.com/photos/16830751@N03/Comment
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