Recent Posts

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91
Processing & Publication / Re: The ongoing march of AI
« Last post by Jack Dahlgren on March 18, 2023, 15:20:18 »
I think of Ai as just another tool to be used. Just as written words and images were magic that helped us keep information persistently, and the printing press allowed us to duplicate and disseminate it, and the camera allowed us precision accuracy and speed in capturing it, and the computer allowed us to easily refine, modify and store it and the network allowed us to share it effortlessly, the expression remains human.
92
Themes, Portfolio Series, PaW, or PaM / Re: Shape echo
« Last post by Akira on March 18, 2023, 14:30:27 »
Echo in Shibuya, Tokyo.
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Themes, Portfolio Series, PaW, or PaM / Re: [Theme] Shoot before you eat - spontaneous non technical food photography
« Last post by MFloyd on March 18, 2023, 13:36:25 »
Garganelli with mushrooms and bacon, prepared in an 18 month mature Parmigiani cheese.

IMG_2666.jpg by Christian Vermeulen, sur Flickr

IMG_2667.jpg by Christian Vermeulen, sur Flickr

IMG_2670.jpg by Christian Vermeulen, sur Flickr

Delicious  :)

Photographed, again with the iPhone 13 Pro Max.
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Lens Talk / Re: 105mm f/2.8 AI-S D850 vs 105mm f/2.8 MC Z9
« Last post by Hugh_3170 on March 18, 2023, 13:36:01 »
Thank you.

(And I agree about the workmanship of the Meike tubes.)

Quote from: Birna Rørslett on March 18, 2023, 13:02:14
Not done an in-depth analysis, but results so far seem convincing enough. I used  Meike extension tubes, which perhaps are not built with stellar workmanship but otherwise function well enough. The Fotodiox tube is better and likely the preferred future candidate. It is also much more expensive :(
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What the Nerds Do / Re: Need for Speed Redux
« Last post by Birna Rørslett on March 18, 2023, 13:27:53 »
For portraits, the  'X-ray' lens comes into the middle-to-near range in which spherical aberrations creep in and softens the image. Still, the 'X-ray' effect can be pushed further to enhance the final outcome.



A portrait of one of my transgender friends. She enjoyed the portrait :)

Achieved with Rodenstock TV-Heligon 50mm f/0.75 on my Nikon Z30.
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Lens Talk / Re: 105mm f/2.8 AI-S D850 vs 105mm f/2.8 MC Z9
« Last post by Birna Rørslett on March 18, 2023, 13:02:14 »
Not done an in-depth analysis, but results so far seem convincing enough. I used  Meike extension tubes, which perhaps are not built with stellar workmanship but otherwise function well enough. The Fotodiox tube is better and likely the preferred future candidate. It is also much more expensive :(
97
Themes, Portfolio Series, PaW, or PaM / Re: [Theme] Show us your best moon (and solar system) images
« Last post by Hugh_3170 on March 18, 2023, 12:07:13 »
Great work here Øivind  - your details highlight the huge effort required of both the photographer and their equipment.  Am pleased for you that it has all come together for you on this occasion.

Quote from: Øivind Tøien on March 18, 2023, 11:34:26
First processing of a February 10 capture of Comet-C/2022 E3 (ZTF) passing Mars, based on 90 exposures each 30s at ISO 800, stack aligned on the comet. Conditions were challenging with clouds coming and going, light pollution and moonlight. My strategy was through multiple nights to do  do a quick 15 min setup and then let the tracker do its job exposing though the evening without touching the setup, hoping for a long enough cloud free period. Processing of comets is quite challenging and I have a long way to go, but vestiges of a double tail is apparent. Artifacts from the movement of Mars was hidden by gaussian blur.
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Camera Talk / Re: The joys of old PC lenses with new Z cameras
« Last post by Hugh_3170 on March 18, 2023, 12:01:43 »
And don't forget the shift lens and tilt/shift lens offerings from other manufacturers now that the Z-Mount cameras and adapters are available. 

My Canon FD 35mm f/2.8mm on an FD to Z-Mount K&F adapter does a fair job.  There are plenty of these Canon FD 35mm TS lenses on "that web site".
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Lens Talk / Re: 105mm f/2.8 AI-S D850 vs 105mm f/2.8 MC Z9
« Last post by Hugh_3170 on March 18, 2023, 11:51:15 »
Birna, do you know if (or how well) the new Voigtländer 65mm f/2 APO-Lanthar handles the extension needed to go to 1:1 please?

Quote from: Birna Rørslett on March 17, 2023, 19:18:00

......................................................... 

For sheer image quality, the new Voigtländer 65mm f/2 APO-Lanthar blows away both Nikkors. It might even be *too* sharp for some applications, a statement made both by myself and Michael Erlewine.  The 65 APO sells for around $850 so is cheaper than the 105 MC. It only goes to 1:2 like the old 55mm Micro-Nikkors thus one needs to use extension on it. However it has full electronic communication with the camera and a rotating aperture ring that can be set to 1/3 or 1/2 stops. Workmanship is exemplary.
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Themes, Portfolio Series, PaW, or PaM / Re: [Theme] Show us your best moon (and solar system) images
« Last post by Øivind Tøien on March 18, 2023, 11:34:26 »
First processing of a February 10 capture of Comet-C/2022 E3 (ZTF) passing Mars, based on 90 exposures each 30s at ISO 800, stack aligned on the comet. Conditions were challenging with clouds coming and going, light pollution and moonlight. My strategy was through multiple nights to do  do a quick 15 min setup and then let the tracker do its job exposing though the evening without touching the setup, hoping for a long enough cloud free period. Processing of comets is quite challenging and I have a long way to go, but vestiges of a double tail is apparent. Artifacts from the movement of Mars was hidden by gaussian blur.
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