Allan Ostling

Allan Ostling

Lives in United States Phoenix, AZ, United States
Works as a retired engineer
Joined on Mar 7, 2009


Total: 11, showing: 1 – 11
On Behind the Shot: Winter Paradise article (41 comments in total)
In reply to:

Slurcher: Beautiful shot!

At the risk of making myself look like an absolute newbie dick, why isn't depth of field an issue with the foreground at f/2.8?

The lens may not have been focused at infinity. When a lens is focused at the hyperfocal distance the depth of field extends from infinity to half the hyperfocal distance.

Direct link | Posted on Oct 23, 2013 at 03:12 UTC
On Preview:olympusEM5 (1364 comments in total)
In reply to:

REJ: Given the new image stabilization feature, this just might be the ideal camera to use with my Minolta 500mm mirror lens. Not to mention ISO 800.

The 5-axis IS will also effect an improvement when using my M.Zuiko 75-300mm lens. And the lack of noise at ISO 6400 (and higher) will bring many other slow lenses into play.

Posted on Feb 22, 2012 at 04:31 UTC
On Getting the best out of the Fujifilm X10 article (40 comments in total)


Thanks, I did not understand that "Set the P, S, A, M default" referred to setting the Resolution to L, M, or S. This is clear, now that you have mentioned it.

When I am in (A)perture priority I would like to shoot RAW only, since I have no need of a JPEG after importing to Lightroom. But setting Resolution to M is available only for RAW + JPEG, so my understanding is that this is the best setting, one which couples the RAW output to some of the magic of the EXR processor.

As a starting point for my own settings, I would like to know your settings for the P,S,A,M modes, particularly ISO and Dynamic Range.

Direct link | Posted on Jan 21, 2012 at 00:04 UTC as 18th comment
On Getting the best out of the Fujifilm X10 article (40 comments in total)

I don't fully understand the chart. I am hung up on the meaning of the first directive: "Set the P,A,S,M default." Of these, I usually shoot in the aperture (A) mode, but what is it that I am being asked to set?

What does it mean in the EXR modes, where it says "returns to P,A,S,M default on exit." What does "on exit" mean, a turning of the mode dial back to one of the P,A,S,M modes?

Direct link | Posted on Jan 18, 2012 at 06:18 UTC as 20th comment
On Canon G1 x preview updated, sample images to follow news story (288 comments in total)
In reply to:

AnHund: It looks very good, but with quite a lot of smearing of fine detail even at ISO 1600.

I didn't get as far as ISO 1600, after seeing smearing at ISO 800. No fibers are discernible in the fur of the mouse.

Direct link | Posted on Jan 15, 2012 at 01:51 UTC

Now that Lightroom has added support for X10 raw files I hope this informative thread will be updated, with a comparison of Lightroom-developed raw (or DNG) files, with jpegs shot in EXR mode.

I will be doing my own experiments, but I am not set up for printing so cannot render the most critical of judgments.

Direct link | Posted on Dec 14, 2011 at 00:17 UTC as 12th comment


Why set the DR to 400 instead of AUTO? Doing so forces DR=400 even for a low-contrast subject (which usually would be shot at DR=100).

Direct link | Posted on Dec 1, 2011 at 18:37 UTC as 18th comment
On Just posted: Fujifilm X10 hands-on preview and video news story (69 comments in total)
In reply to:

Piet Maartens: Looks very promising, this may just be the camera I have been waiting for. One question: Does it have flash exposure compensation? Nothing mentioned under specifications. I often use balanced fill flash to brighten up the foreground. Thanks!

The Manual (p. 87) states that flash compensation can be set. "Choose from values between +2/3 EV ad -2/3 EV."

Direct link | Posted on Oct 31, 2011 at 23:57 UTC
On Fujifilm X10 preview (425 comments in total)
In reply to:

johnparas11zenfoliodotcom: can dpr post a side view of the cam on the off position..not with a lens protruding so far from the body? it is one way to see if the camer ais bulky--with a built in compared to an MFT with a pan cake.

is there any news if this will have a silver top and black body? for retro styling..

just a side note-- no dedicated video record button? :-(

The side view does show a dimensional arrow, which indicates the length of the lens when retracted. It appears that the entire inner barrel slides into the outer sleeve.

Direct link | Posted on Oct 31, 2011 at 02:15 UTC
On Leica M9 comparison shots added to dpreview database news story (149 comments in total)
In reply to:

Mescalamba: Would be nice to know which lens was used (50mm Summicron would be good choice or Zeiss 50mm f1.5).

Btw. why no review of M9 (or M9-P), no love for Leica? :)

The EXIF data shows that the 75mm Summarit was stopped down to f16 for this shot. Why would they use the lens at an aperture so far from its optimum?

Direct link | Posted on Oct 12, 2011 at 00:37 UTC
On Sony SLT-A77 studio comparison samples news story (226 comments in total)

Is there information on which lens was used, for each of the cameras being compared?

Direct link | Posted on Sep 26, 2011 at 21:49 UTC as 85th comment
Total: 11, showing: 1 – 11