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Black Gold

Guest all8

By Guest all8,
in Nature & Wildlife

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Guest all8

Guest all8

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A7ii + Loxia 50 @ f5.6 + RRS tripod + 19 image stack (Helicon Focus) + BW conversion and heavy crop.

 

 

 

 

Originals are on 500px.

 

The cropping is ... the current limitation. Really need a macro lens for the camera, waiting for a Zeiss Loxia or Batis, but also thinking about the Milvus 50/2 M ... or some kind of bellows which can work with the Loxia.

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markphoto4u Contributor

markphoto4u

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I bought the Sony FE 2.8/90 Macro G OSS and am very pleased with the results. I think I paid a little over a grand for it. IMHO it is well built and worth the money. Will try to post a couple of shots here.

 

 

markphoto4u

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markphoto4u

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markphoto4u Contributor

markphoto4u

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Let me try the larger size

 

 

markphoto4u

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Simply register for free here – We are always happy to welcome new members!

 

 

 

markphoto4u

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Guest all8

Guest all8

Posted
Posted

I bought the Sony FE 2.8/90 Macro G OSS and am very pleased with the results. I think I paid a little over a grand for it. IMHO it is well built and worth the money. Will try to post a couple of shots here.

 

 

markphoto4u

 

 

Thanks.

 

How do you find the manual focus behaviour? And have you done any image stacks?

 

So far I've done image stacks with Loxia 50mm and Batis 25. The Loxia was OK, however the Batis was a little odd because the manual focus movement/speed depends on _how_fast_ the focus ring is turned and not _how_far_ it is turned.

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  • Posts

    • Richard A
      ISO Bracketing

      By Richard A · Posted

      ISO 320 is the A7R5's second base ISO setting. You will find at ISO 320 you will get better results than even ISO 200. I normally take a set of shots at 1600, 3200 and 6400 ISO. I am taking 60 light frames and 10 dark frames. I don't do any adjustments to the files before stacking. I really need to get organised and do some bias frames now. Here is pretty much my first successful Milky Way shot from a few months ago. I was combatting a bit of ambient light and quite a lot of cloud but I'm pretty happy with this. It was shot using my Sigma 16-28 f2.8 which is better at astro than I had anticipated, at ISO 1600.

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      Simply register for free here – We are always happy to welcome new members!

    • popeye10
      ISO Bracketing

      By popeye10 · Posted

      Thanks for the information. Since my original post, I did some "experiments" at different iso settings. Best results were obtained at iso 320, and then increasing the exposure by four stops in Lightroom. The biggest difference compared to using a higher iso was that there was detail in dark foreground areas, while at high iso the dark areas were blocked. This is consistent with articles I've read about ISO invariance.
    • Richard A
      ISO Bracketing

      By Richard A · Posted

      I do a bit of astro photography and do a lot of research etc. on best settings to use. I have never heard of anyone using ISO bracketing! Typically, higher ISO settings such as 1600, 3200 or 6400 are used and multiple light and dark frames are stacked to reduce noise. If you are worried about noise in dark foreground areas then just use a seperate exposure for them then blend the exposures in post processing. By the way, I also have an A7R5.

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