Re: Lunchtime Visitor

[Paul Stenquist]

It’s just bokeh, IMO. The background is very busy with small spruce needles 
intertwined with cedar needles and dead branches, all of which were brighter 
lit than the cardinal. There’s not a lot of sharpening here, but it’s a 
considerable crop, so noise and other problems are magnified. This shot would 
have been a mess with my A 400/5.6. Thus far,  the 150-450 seems to generate 
good bokeh, but with any lens, the look is largely a product of what is back 
there. In this example, it rendered the out of focus elements in a much nicer 
fashion: http://photo.net/photodb/photo?photo_id=18146695=lg
> On Jan 6, 2016, at 7:10 PM, Igor PDML-StR  wrote:
> 
> 
> Paul,
> 
> It is a nice picture, but I am curious about a certain aspect of it that 
> might be a characteristic of the lens:
> The background (especially the green from the tree right in the middle of the 
> photo) seems to have some type of high-frequency "jitter".
> I wonder what's the origin of that?
> I could see a few different possible sources:
> 1. strange bokeh in combination with the small features of the tree
> 2. camera shake (motion blur) that is compensated for the in-focus items, but 
> not quite for the background.
> 3. sharpening combined with one of the above
> 4. ... (?)
> 
> What do you think?
> 
> Igor
> 
> 
> 
> On Wed, Jan 6, 2016 at 2:10 PM, Paul Stenquist wrote:
> 
>> Took a break and sat outside at noon today. This guy was too distant - the
>> pic is only about 30% of frame - so it.s nothing special. But it's a nice
>> example of lens performance. K-3 DFA 150-450, f5.6, 1/1250th, ISO 1250,
>> handheld, 450mm. I like the way this combination locks in focus, but at this
>> distance, about 70 feet I'd guess,  finding the critter in the tree is a
>> chore. But once I get a single point on him, it.ll lock right in.
>> 
>> http://photo.net/photodb/photo?photo_id=18154948=lg
>> 
> 
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Re: Lunchtime Visitor

[David J Brooks]

very nice indeed

Dave

On Wed, Jan 6, 2016 at 2:10 PM, Paul Stenquist  wrote:
> Took a break and sat outside at noon today. This guy was too distant — the 
> pic is only about 30% of frame — so it’s nothing special. But it’s a nice 
> example of lens performance. K-3 DFA 150-450, f5.6, 1/1250th, ISO 1250, 
> handheld, 450mm. I like the way this combination locks in focus, but at this 
> distance, about 70 feet I’d guess,  finding the critter in the tree is a 
> chore. But once I get a single point on him, it’ll lock right in.
>
> http://photo.net/photodb/photo?photo_id=18154948=lg
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-- 
Documenting Life in Rural Ontario.
www.caughtinmotion.com
http://brooksinthecountry.blogspot.com/
York Region, Ontario, Canada

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Re: Lunchtime Visitor

[Igor PDML-StR]

Paul,

It is a nice picture, but I am curious about a certain aspect of it that 
might be a characteristic of the lens:
The background (especially the green from the tree right in the middle of 
the photo) seems to have some type of high-frequency "jitter".

I wonder what's the origin of that?
I could see a few different possible sources:
1. strange bokeh in combination with the small features of the tree
2. camera shake (motion blur) that is compensated for the in-focus items, 
but not quite for the background.

3. sharpening combined with one of the above
4. ... (?)

What do you think?

Igor



On Wed, Jan 6, 2016 at 2:10 PM, Paul Stenquist wrote:


Took a break and sat outside at noon today. This guy was too distant - the
pic is only about 30% of frame - so it.s nothing special. But it's a nice
example of lens performance. K-3 DFA 150-450, f5.6, 1/1250th, ISO 1250,
handheld, 450mm. I like the way this combination locks in focus, but at this
distance, about 70 feet I'd guess,  finding the critter in the tree is a
chore. But once I get a single point on him, it.ll lock right in.

http://photo.net/photodb/photo?photo_id=18154948=lg



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Re: Lunchtime Visitor

[Jack Davis]

Better apparent resolution!  Encouraging!
Thanks for posting, Paul!

J

- Original Message -
From: "Paul Stenquist" 
To: "Pentax-Discuss Mail List" 
Sent: Wednesday, January 6, 2016 11:10:11 AM
Subject: Lunchtime Visitor

Took a break and sat outside at noon today. This guy was too distant — the pic 
is only about 30% of frame — so it’s nothing special. But it’s a nice example 
of lens performance. K-3 DFA 150-450, f5.6, 1/1250th, ISO 1250, handheld, 
450mm. I like the way this combination locks in focus, but at this distance, 
about 70 feet I’d guess,  finding the critter in the tree is a chore. But once 
I get a single point on him, it’ll lock right in.

http://photo.net/photodb/photo?photo_id=18154948=lg
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