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  • Give it Your Best Shot • Re: My haitus September 19, 2017
    Thank you Henry and JB for your kind words and encouragement. I am keeping focus on the 95% that is "working" rather than the 5% that causes me the trouble though often it is frustrating. The support I got/get from my family and friends including the well wishers on the forum has been tremendous and […]
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  • Give it Your Best Shot • Re: Huntley Meadows - Not Just Birds September 19, 2017
    I like these. My favorite is the leaf because of its simplicity and the bokeh… and because I went hiking this weekend and got hit in the face by bunches of those dangling booby traps. I never thought to stop and take photos of them. From now on I will.SigStatistics: Posted by smulnik — Tue […]
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  • Give it Your Best Shot • Re: Helping Friends with Short Art Films September 18, 2017
    Just a couple more shots from the mine: working out the composition of the scene, and marking through the choreography.SigStatistics: Posted by smulnik — Mon Sep 18, 2017 9:18 pm
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  • Give it Your Best Shot • Re: Helping Friends with Short Art Films September 18, 2017
    jbtaylor wrote:Very interesting.Seems odd that in the world of digital imaging that one must trek that far into the earth to find an interesting background. Maybe "feel" has something to do with it.Kindest Regards,JTYes, there's a different "feel", and since these guys are good at finding fee-free locations, shooting on site can be a lot […]
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  • Give it Your Best Shot • Re: Helping Friends with Short Art Films September 18, 2017
    Almazar80 wrote:... Dancing lead miners? I would not have thought about that.Well, you know... lead poisoning. This particular scene is of a miner's strike and fight. It's kind of like West Side Story where all of the fighting is choreographed dancing.SigStatistics: Posted by smulnik — Mon Sep 18, 2017 8:32 pm
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A7RII versus Pentax 645Z

At a workshop given by John Denton for The Flash Centre, with Elinchrom lighting and Pentax 645Z demonstration. model Laura posed for a comparison pair of shots using the Pentax with 90mm macro lens and the A7RII equipped I regret to say with a much inferior lens, the basic 28-70mm.

To compare the quality bear in mind that the Pentax was ISO 200 at f/5.6 and the Sony was ISO 400 at f/8 as I felt it necessary to stop down – I should not have, as I had forgotten than the 28-70mm is sharper at f/5.6 than f/8, which introduces local unsharpness to the left hand end of the image (landscape) and did with all three samples I have used. This means the model’s face is smeared on the Sony shot, because this lens can’t produce a sharp image under these conditions in that part of the frame. Yes, I’ve had some OK results, but this was the first time I used the 28-70mm on the A7RII. It is OK on the A7II and A7S, as the blur is not so visible at those magnifications. It’s really not good on the A7R or A7RII.

So, please examine everything except the face…

This is the Pentax shot. Despite the matched for theoretical exposure, it is much darker and the ISO 200 is only equal to ISO 100 in Sony terms. Daylight balance set for the flash, Adobe Camera Standard profile since no other is available.

Here is the full resolution link to 146MB (if opened or downloaded) original:

//www.pbase.com/davidkilpatrick/image/160895282

This is the Sony shot. The Camera Portrait profile in ACR gave much improved skin tones, so I’ve used this. The pBase link appears to have scaled the images proprotionally, so the 42Mp image is correctly smaller than the 50Mp.

Here is the link to the 120MB original:

//www.pbase.com/davidkilpatrick/image/160895292

Enjoy – John teaches retouching and has set up deliberately harsh lighting to create over-sharp skin and too much detail, which he then expertly ‘fixes’. My shots are un-fixed. His workshops are worth every penny as he delivers an entire set of notes and his Photoshop actions to all delegates.

– David Kilpatrick

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