I’ve found that K3 images in general require very little sharpening, depending on the lens of course. This seemed particularly true in comparison to K5 images. However, I always do some sharpening when working on a photo for presentation. I work for a best subjective look, but do it at 100% on my 2560 x 1440 monitor. But for testing purposes, I don’t sharpen. That’s particularly important when shooting for fine focus adjustment. Being able to clearly differentiate the difference in sharpness is helpful. Here, I wanted to see exactly what the lens and sensor could accomplish on their own. That being said there’s some default sharpening in a photoshop RAW conversion. Mine is set at Adobe’s default value, whatever that may be. > On Dec 15, 2015, at 5:02 PM, Jack Davis <[email protected]> wrote: > > Paul, > I recall your mentioning not having done any sharpening to the 150-450 > examples you posted. > I think that some moderate sharpening certainly and even a tad of ERC > "clarify" would be > reasonable and more realistic. > I believe it's intended that digital images be sharpened. > > J > > ----- Original Message ----- > From: "Paul Stenquist" <[email protected]> > To: "Pentax-Discuss Mail List" <[email protected]> > Sent: Monday, December 14, 2015 1:03:01 PM > Subject: DFA 150-450, first impression > > The 150-450 zoom arrived today. It’s dark and gloomy in Michigan and raining > intermittently, so I resisted the urge to go looking for birds and instead > set the fine focus adjustment, then took a couple of sample pics. My tests > showed the lens was back focusing a bit, and a +4 setting brought it right in > throughout the range. It’s built like a tank, there’s no wobble or looseness, > and the zoom is as tight as any lens i’ve ever owned. (One reviewer mentioned > zoom creep. If that ever was a problem, it’s definitely been resolved. You > have to expend a fair amount of effort to change the focal length.) I shot > some dead ferns off a tripod at 450mm, ISO 3200, f5.6, 1/60th. > > http://photo.net/photodb/photo?photo_id=18141845&size=lg > > Here’s a 100% crop of the area where I placed the focal point > > http://photo.net/photodb/photo?photo_id=18141846&size=lg > > Very pleased thus far. Can’t wait to try it out on some birdies. > > Paul > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions.
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