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Moth
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Macrero



Joined: 01 Sep 2011
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Location: Valladolid , Spain

PostPosted: Wed May 22, 2019 4:02 am    Post subject: Moth Reply with quote

Oly Pen F + Mitty 7.5 + 80mm tube lens at 3.2X approx.



Bigger: https://images2.imgbox.com/1e/d7/gzGek7Qz_o.jpg

Best,

- Macrero
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rolsen



Joined: 01 May 2018
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Location: Finland

PostPosted: Wed May 22, 2019 4:18 am    Post subject: Reply with quote

This is awesome!
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- Rane
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zzffnn



Joined: 22 May 2014
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Location: Texas USA

PostPosted: Wed May 22, 2019 5:47 am    Post subject: Reply with quote

Beautiful work, thank you for sharing! Which 80mm tube Len did you use? I am using Oly m4/3 camera (E-M1 mk1) too.
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Macrero



Joined: 01 Sep 2011
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Location: Valladolid , Spain

PostPosted: Wed May 22, 2019 6:43 am    Post subject: Reply with quote

Thank you, Rane!

@zzffnn: Thank you! This stack is with Rodagon 5.6/80 from Scitex scanner, though a regular 80mm enlarging lens (Rodagon, Componon, etc) would do just as well.

Note that tube lens was mounted on Bellows and was not reaching infinity at minimal extension, hence the higher magnification. I don't see any significant degradation in IQ though.

Small sensors have their drawbacks, but also advantages. I can't think of many (if any) 0.20-ish optics that would cover reasonably well a 35mm sensor at around 3X.

- Macrero
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rjlittlefield
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Joined: 01 Aug 2006
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Location: Richland, Washington State, USA

PostPosted: Wed May 22, 2019 8:40 am    Post subject: Reply with quote

Macrero wrote:
Small sensors have their drawbacks, but also advantages. I can't think of many (if any) 0.20-ish optics that would cover reasonably well a 35mm sensor at around 3X.

I agree, but then at same magnification a 35mm sensor would cover almost 4 times the area. To capture the same size subject, your Mitty 7.5 would work well on 35mm fullframe with a proportionally longer tube lens.

Other than reduced size & weight, I'm not seeing the advantage of small sensor here. What have I missed?

--Rik
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Lou Jost



Joined: 04 Sep 2015
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PostPosted: Wed May 22, 2019 9:15 am    Post subject: Reply with quote

For a given set of lenses, you get more pixels under a given FOV with smaller sensors than with large ones. That can be convenient sometimes.
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Macrero



Joined: 01 Sep 2011
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Location: Valladolid , Spain

PostPosted: Wed May 22, 2019 9:17 am    Post subject: Reply with quote

rjlittlefield wrote:

I agree, but then at same magnification a 35mm sensor would cover almost 4 times the area. To capture the same size subject, your Mitty 7.5 would work well on 35mm fullframe with a proportionally longer tube lens.

Other than reduced size & weight, I'm not seeing the advantage of small sensor here. What have I missed?

--Rik


I was trying to justify to myself the money I spent recently on the Oly. Thanks for ruining my attempt! Evil or Very Mad Laughing

I bought it mostly for the Oly's pixel-shift, which I wanted to try, but it didn't convince me. It is stil a nice little camera with a great for the size sensor.
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Lou Jost



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PostPosted: Wed May 22, 2019 9:23 am    Post subject: Reply with quote

I love the pixel shift. Though now we can get the same thing on FF with the Panasonic S1-R. I think both systems have their advantages. For fieldwork the lightness, pixel-shifting, and fast auto focus bracketing of the PEN F are huge advantages. For studio work the FF Panasonic will give better image quality, but will cost a fortune, and may not really have useful auto focus bracketing.
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Macrero



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PostPosted: Wed May 22, 2019 10:28 am    Post subject: Reply with quote

I am really tempted by the S1R. Maybe it will be my self-gift for Christmas Razz Though launching price of high-end cameras nowadays is prohibitive... Evil or Very Mad
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Harald



Joined: 13 May 2011
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PostPosted: Wed May 22, 2019 12:23 pm    Post subject: Reply with quote

Hi Macrero,
Great work!

Love the light and details Very Happy

Thanks for sharing this great image Cool
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Harald

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Macrero



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PostPosted: Wed May 22, 2019 1:28 pm    Post subject: Reply with quote

Thank you, Harald! Glad you like it.
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Lou Jost



Joined: 04 Sep 2015
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PostPosted: Wed May 22, 2019 9:26 pm    Post subject: Reply with quote

Quote:
I am really tempted by the S1R. Maybe it will be my self-gift for Christmas


I am going to take the plunge in a few days, though I will have to sell some of my high-end lenses to pay for it. But without focus bracketing (as the term had been used by Olympus), it won't replace my wonderful PEN F.

I still can't believe that nobody has yet made a FF camera that does focus shifting and pixel shifting. Nikon Z does focus shifting but no pixel shifting, and it seems the S1-R (can do pixel shifting but not focus shifting (except for a 7-shot bracket).
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Macrero



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PostPosted: Thu May 23, 2019 2:01 am    Post subject: Reply with quote

Lou Jost wrote:

I am going to take the plunge in a few days, though I will have to sell some of my high-end lenses to pay for it. But without focus bracketing (as the term had been used by Olympus), it won't replace my wonderful PEN F.

I still can't believe that nobody has yet made a FF camera that does focus shifting and pixel shifting. Nikon Z does focus shifting but no pixel shifting, and it seems the S1-R (can do pixel shifting but not focus shifting (except for a 7-shot bracket).


Nice! I look forward to seeing your opinion and tests.

I'll wait a few months to see if price drops... Rolling Eyes

The pixel-shifted sample on DPR looks impressive, yet the "regular" 47-megapixel image looks great too.
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MarkSturtevant



Joined: 21 Nov 2015
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PostPosted: Thu May 23, 2019 9:25 pm    Post subject: Reply with quote

That is exceptionally wonderful.
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Macrero



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PostPosted: Fri May 24, 2019 8:45 am    Post subject: Reply with quote

Thank you, Mark!
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