Focus difference .....

Jimfastcar · Feb 17, 2020

These two pictures were taken within 15 minutes of each other. Same lens, etc

Settings are identical 1/1000, Auto ISO, SS Priority

The Owl is out of focus, as are all the some 20 pics I took....

A bit annoyed, because I was out looking for Snowy Owls, and my Landscape shots are OK, but not the Snowys. I don't think I was that excited to make my hands shake !

BTW, says original is jpeg, they were both shot in RAW

--
https://www.flickr.com/photos/130989292@N07/

JimH123 · Feb 17, 2020

Jimfastcar said:
These two pictures were taken within 15 minutes of each other. Same lens, etc

Settings are identical 1/1000, Auto ISO, SS Priority

The Owl is out of focus, as are all the some 20 pics I took....

A bit annoyed, because I was out looking for Snowy Owls, and my Landscape shots are OK, but not the Snowys. I don't think I was that excited to make my hands shake !

BTW, says original is jpeg, they were both shot in RAW

The Snowy Owl is suffering from a lot of camera shake. Here is a screen shot using Topaz Sharpen AI - Stabilize Mode. I have a split screen showing the corrected to the right and the original to the left of the divider. Please note how much sharper the speckles on the wings are. Also, in order to get it this good, I had to move the Remove Blur slider all the way to the right and even that wasn't quite far enough.

I doesn't look like focus is a problem. And Sharpen AI - Focus Mode did not improve the image. Only Stabilize Mode had any effect.

Also, even Stabilize Mode is not enough to rescue this image. If I look at the whole image, it just isn't right. There is just too much shake to correct it.

I also tried to stabilize the 2nd image and I see some camera shake there too. Just not as much, which is expected since the focal length is not as great.

Here is a close up after treating it for camera shake. I find it somewhat sharper.

Jimfastcar · Feb 18, 2020

JimH123 said:
Jimfastcar said:

These two pictures were taken within 15 minutes of each other. Same lens, etc

Settings are identical 1/1000, Auto ISO, SS Priority

The Owl is out of focus, as are all the some 20 pics I took....

A bit annoyed, because I was out looking for Snowy Owls, and my Landscape shots are OK, but not the Snowys. I don't think I was that excited to make my hands shake !

BTW, says original is jpeg, they were both shot in RAW

Click to expand...

The Snowy Owl is suffering from a lot of camera shake. Here is a screen shot using Topaz Sharpen AI - Stabilize Mode. I have a split screen showing the corrected to the right and the original to the left of the divider. Please note how much sharper the speckles on the wings are. Also, in order to get it this good, I had to move the Remove Blur slider all the way to the right and even that wasn't quite far enough.

I doesn't look like focus is a problem. And Sharpen AI - Focus Mode did not improve the image. Only Stabilize Mode had any effect.

Also, even Stabilize Mode is not enough to rescue this image. If I look at the whole image, it just isn't right. There is just too much shake to correct it.

I also tried to stabilize the 2nd image and I see some camera shake there too. Just not as much, which is expected since the focal length is not as great.

Here is a close up after treating it for camera shake. I find it somewhat sharper.

Thanks. I am disappointed I dropped the ball with the Snowy, will have to go hunting again before they head north to have babies

--

Robert (Jim) Carmichael

Explore Robert (Jim) Carmichael’s 1,001 photos on Flickr!

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Horacecoker · Feb 18, 2020

Jimfastcar said:
JimH123 said:

Jimfastcar said:

These two pictures were taken within 15 minutes of each other. Same lens, etc

Settings are identical 1/1000, Auto ISO, SS Priority

The Owl is out of focus, as are all the some 20 pics I took....

A bit annoyed, because I was out looking for Snowy Owls, and my Landscape shots are OK, but not the Snowys. I don't think I was that excited to make my hands shake !

BTW, says original is jpeg, they were both shot in RAW

Click to expand...

The Snowy Owl is suffering from a lot of camera shake. Here is a screen shot using Topaz Sharpen AI - Stabilize Mode. I have a split screen showing the corrected to the right and the original to the left of the divider. Please note how much sharper the speckles on the wings are. Also, in order to get it this good, I had to move the Remove Blur slider all the way to the right and even that wasn't quite far enough.

I doesn't look like focus is a problem. And Sharpen AI - Focus Mode did not improve the image. Only Stabilize Mode had any effect.

Also, even Stabilize Mode is not enough to rescue this image. If I look at the whole image, it just isn't right. There is just too much shake to correct it.

I also tried to stabilize the 2nd image and I see some camera shake there too. Just not as much, which is expected since the focal length is not as great.

Here is a close up after treating it for camera shake. I find it somewhat sharper.

Click to expand...

Thanks. I am disappointed I dropped the ball with the Snowy, will have to go hunting again before they head north to have babies

Regarding the owl shot, were you shooting from inside a car?

itsDing · Feb 18, 2020

Stay off the booze or get a tripod, lol.

Horacecoker · Feb 18, 2020

itsDing said:
Stay off the booze or get a tripod, lol.

Crikey! I didn't even take the photos, what should the OP do?

JimH123 · Feb 18, 2020

Jimfastcar said:
JimH123 said:

Jimfastcar said:

These two pictures were taken within 15 minutes of each other. Same lens, etc

Settings are identical 1/1000, Auto ISO, SS Priority

The Owl is out of focus, as are all the some 20 pics I took....

A bit annoyed, because I was out looking for Snowy Owls, and my Landscape shots are OK, but not the Snowys. I don't think I was that excited to make my hands shake !

BTW, says original is jpeg, they were both shot in RAW

Click to expand...

The Snowy Owl is suffering from a lot of camera shake. Here is a screen shot using Topaz Sharpen AI - Stabilize Mode. I have a split screen showing the corrected to the right and the original to the left of the divider. Please note how much sharper the speckles on the wings are. Also, in order to get it this good, I had to move the Remove Blur slider all the way to the right and even that wasn't quite far enough.

I doesn't look like focus is a problem. And Sharpen AI - Focus Mode did not improve the image. Only Stabilize Mode had any effect.

Also, even Stabilize Mode is not enough to rescue this image. If I look at the whole image, it just isn't right. There is just too much shake to correct it.

I also tried to stabilize the 2nd image and I see some camera shake there too. Just not as much, which is expected since the focal length is not as great.

Here is a close up after treating it for camera shake. I find it somewhat sharper.

Click to expand...

Thanks. I am disappointed I dropped the ball with the Snowy, will have to go hunting again before they head north to have babies

If you are going to shoot handheld at 400mm with the 1.4X teleconverter, make sure that image stabilization (i.e. the lens OSS) is turned on and raise the ISO so that shutter speed is higher. You can treat the noise better than you can treat the shake.

If you use a tripod, turn the image stabilization off.

Joachim Wulfers · Feb 18, 2020

Hi Jim, I don't think your landscape image is sharp either. Where you in your car with running engine?

Snowys are still around, at least I see one just west of Guelph on a similar pole like yours close to a farm

--
JoWul
https://www.flickr.com/photos/jowul/

Jimfastcar · Feb 18, 2020

No booze, 10 am !

Car running

OSS on / handheld

Will try again, thanks all

Joachim Wulfers · Feb 18, 2020

Jimfastcar said:
No booze, 10 am !

Car running ----------- That's the reason

OSS on / handheld

Will try again, thanks all

Best to shut off the engine and use the lowered window to support the lens. A bean bag or a u-shape neck pillow would work well

--
JoWul
https://www.flickr.com/photos/jowul/

Horacecoker · Feb 18, 2020

Joachim Wulfers said:
Jimfastcar said:

No booze, 10 am !

Car running ----------- That's the reason

OSS on / handheld

Will try again, thanks all

Click to expand...

Best to shut off the engine and use the lowered window to support the lens. A bean bag or a u-shape neck pillow would work well

Even with the engine off, it's not enough. It's the temperature difference from inside the car to outside the car that has definitely caused the problem on the owl shot.

Joachim Wulfers · Feb 18, 2020

Horacecoker said:
Joachim Wulfers said:

Jimfastcar said:

No booze, 10 am !

Car running ----------- That's the reason

OSS on / handheld

Will try again, thanks all

Click to expand...

Best to shut off the engine and use the lowered window to support the lens. A bean bag or a u-shape neck pillow would work well

Click to expand...

Even with the engine off, it's not enough. It's the temperature difference from inside the car to outside the car that has definitely caused the problem on the owl shot.

window open, lens outside of the car, works for me all the time although it gets cold after a while

JimH123 · Feb 18, 2020

Jimfastcar said:
No booze, 10 am !

Car running

OSS on / handheld

Will try again, thanks all

I'm sure you will be successful after making a few adjustments. Please post your next attempt. And best of luck.

splashy · Feb 19, 2020

Horacecoker said:
Even with the engine off, it's not enough. It's the temperature difference from inside the car to outside the car that has definitely caused the problem on the owl shot.

Just curious, why does the temperature difference matter?

Horacecoker · Feb 19, 2020

splashy said:
Horacecoker said:

Even with the engine off, it's not enough. It's the temperature difference from inside the car to outside the car that has definitely caused the problem on the owl shot.

Click to expand...

Just curious, why does the temperature difference matter?

I'm no expert and don't really know for sure. But we have had plenty of threads over on the Sony Cybershot forum about this very problem when shooting from cars with the engine running or not. The OP's owl shot is not a focus problem or a camera shake problem, that's why I asked him if he was shooting from a car, turns out he was and that's the answer.

splashy · Feb 19, 2020

With the engine running the camera shakes, with the engine off and camera leaning on the car Oss and Ibis off.

But I never experienced problems with temperature differences, while photographing out of a car.

Besides from getting cold sometimes. LoL

Michael Fritzen · Feb 19, 2020

Defintely. At ISO 125 there was a lot of lee way to the point where noise might have been a concern.

Let's have a look at the numbers: A 400mm lens + 1,4TC mounted on APS-C sensor - this gives us an equivalent FL of 840mm. This means that 1/1000s would be at the limits of the 1/FL rule of thumb back from film times. On high pixel density sensors this rule of thumb goes up to 3x the FL which would mean an exposure time of 1/2500s.

Yes, the IBIS / OSS sometimes can do miracles. But on important shots, especially with plenty of light, I'd always take the secure road by selecting a short enough exposure time (and shoot a burst).

Michael Fritzen · Feb 19, 2020

Well there's a little chance that warm air escaping from inside the car cause air oscilation and thus degrading image. If this is really a concern under the given circumstances is unclear.

But shooting long FL the effect of atmospheric turbulence shouldn't be underestimated. When heat waves / oscilation can be noticed by the naked eye it's easy to understand what is does to the depicting on the sensor plane behind a long FL lens.

--
Cheers,
Michael Fritzen

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Focus difference .....

Jimfastcar

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JimH123

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Jimfastcar

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Robert (Jim) Carmichael

Horacecoker

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itsDing

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Jimfastcar

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