Nature Shake reduction

Shake reduction · **1 Like**

I posted a while back asking the question whether to use Shake Reduction or not when hand holding the Pentax 150 - 450mm lens , finally got to test this today with a very Cooperative Eagle , both images are out of camera , and I've done a heavy crop to both , only difference is one has an ISO of 125 the other 160 I used TAv setting . shot at the long end of the lens 450mm

So which one is more crisp Shake reduction or not ?

First image Shake reduction ON

Second Image Shake Reduction Off

also note I did have the camera and lens resting on a steel bridge beam during both shots

HullPentaxian · 06-04-2018, 09:36 PM - **1 Like**

Both 800th of a sec at f5.6? Can't see much difference and maybe with a steady camera at 800th of a sec, you wouldn't notice too much difference. Next time, try using the shake reduction to let you have access to f8. See if it sharpens the image giving more DOF.

Outlander · 06-05-2018, 06:06 PM

Originally posted by HullPentaxian

Both 800th of a sec at f5.6? Can't see much difference and maybe with a steady camera at 800th of a sec, you wouldn't notice too much difference. Next time, try using the shake reduction to let you have access to f8. See if it sharpens the image giving more DOF.

thank you for the comment , will be sure to try this next time !

Alan

**DW58** · 06-05-2018, 06:11 PM

2nd image is a bit sharper. Look at the eye.

SSGGeezer · 06-05-2018, 06:12 PM

I found with my 120-400 that TAv and f/9 is sharpest, f/8 is good and a lot better than 6.3 but 9 is the sweet spot. Even 7.1 may sharpen it up a bit.

---------- Post added 06-05-18 at 06:13 PM ----------

Originally posted by DW58

2nd image is a bit sharper. Look at the eyes.

He appears to have shifted so his eye is more square to the camera and the sun in the second shot though. That could be the difference. The eye is certainly brighter in the second image.

Outlander · 06-05-2018, 06:34 PM

Originally posted by DW58

2nd image is a bit sharper. Look at the eye.

when I crop even further in its appears second image is sharper on my end , and yes as stated he did shift his head while I was switching the function on/off

**DW58** · 06-05-2018, 06:52 PM - **1 Like**

Saw that the eagle turned his head slightly between shots but didn't think that small of a move would make a difference. I think I was wrong. Looking at the branches there is not much difference that I can see.

SSGGeezer · 06-05-2018, 07:21 PM

Stopping down a bit will tell the tale. And steel bridges have harmonics that could create movement based on your weight or the wind. (we have lots of old bridges here!)

Outlander · 06-06-2018, 10:25 PM

Originally posted by SSGGeezer

Stopping down a bit will tell the tale. And steel bridges have harmonics that could create movement based on your weight or the wind. (we have lots of old bridges here!)

yes have to agree on the bridge movement

françois · 06-07-2018, 10:54 PM

#2 no question...

Outlander · 06-12-2018, 03:22 PM

Originally posted by françois

#2 no question...

been thinking the same , thanks for the comment

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06-04-2018, 09:36 PM - 1 Like	#2
HullPentaxian Junior Member Join Date: May 2018 Photos: Gallery \| Albums Posts: 34	Both 800th of a sec at f5.6? Can't see much difference and maybe with a steady camera at 800th of a sec, you wouldn't notice too much difference. Next time, try using the shake reduction to let you have access to f8. See if it sharpens the image giving more DOF.

06-05-2018, 06:06 PM	#3
Outlander Pentaxian Join Date: Mar 2016 Location: Easten Canada Photos: Gallery Posts: 1,148 Original Poster	Originally posted by HullPentaxian Both 800th of a sec at f5.6? Can't see much difference and maybe with a steady camera at 800th of a sec, you wouldn't notice too much difference. Next time, try using the shake reduction to let you have access to f8. See if it sharpens the image giving more DOF. thank you for the comment , will be sure to try this next time ! Alan

06-05-2018, 06:11 PM	#4
DW58 Loyal Site Supporter Join Date: Dec 2015 Location: Rural Oregon Photos: Gallery \| Albums Posts: 7,066	2nd image is a bit sharper. Look at the eye.

06-05-2018, 06:12 PM	#5
SSGGeezer Veteran Member Join Date: Jun 2017 Location: Indiana, U.S. Photos: Gallery \| Albums Posts: 4,845	I found with my 120-400 that TAv and f/9 is sharpest, f/8 is good and a lot better than 6.3 but 9 is the sweet spot. Even 7.1 may sharpen it up a bit. ---------- Post added 06-05-18 at 06:13 PM ---------- Originally posted by DW58 2nd image is a bit sharper. Look at the eyes. He appears to have shifted so his eye is more square to the camera and the sun in the second shot though. That could be the difference. The eye is certainly brighter in the second image.

06-05-2018, 06:34 PM	#6
Outlander Pentaxian Join Date: Mar 2016 Location: Easten Canada Photos: Gallery Posts: 1,148 Original Poster	Originally posted by DW58 2nd image is a bit sharper. Look at the eye. when I crop even further in its appears second image is sharper on my end , and yes as stated he did shift his head while I was switching the function on/off

06-05-2018, 06:52 PM - 1 Like	#7
DW58 Loyal Site Supporter Join Date: Dec 2015 Location: Rural Oregon Photos: Gallery \| Albums Posts: 7,066	Saw that the eagle turned his head slightly between shots but didn't think that small of a move would make a difference. I think I was wrong. Looking at the branches there is not much difference that I can see.

06-05-2018, 07:21 PM	#8
SSGGeezer Veteran Member Join Date: Jun 2017 Location: Indiana, U.S. Photos: Gallery \| Albums Posts: 4,845	Stopping down a bit will tell the tale. And steel bridges have harmonics that could create movement based on your weight or the wind. (we have lots of old bridges here!)

06-06-2018, 10:25 PM	#9
Outlander Pentaxian Join Date: Mar 2016 Location: Easten Canada Photos: Gallery Posts: 1,148 Original Poster	Originally posted by SSGGeezer Stopping down a bit will tell the tale. And steel bridges have harmonics that could create movement based on your weight or the wind. (we have lots of old bridges here!) yes have to agree on the bridge movement

06-07-2018, 10:54 PM	#10
françois Veteran Member Join Date: Apr 2017 Location: British-Columbia Photos: Gallery \| Albums Posts: 764	#2 no question...

06-12-2018, 03:22 PM	#11
Outlander Pentaxian Join Date: Mar 2016 Location: Easten Canada Photos: Gallery Posts: 1,148 Original Poster	Originally posted by françois #2 no question... been thinking the same , thanks for the comment