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Pearl Coloured Petals of a Sunset Moth

 
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Macro_Cosmos



Joined: 15 Jan 2018
Posts: 161
Location: Sydney

PostPosted: Wed Dec 05, 2018 10:21 am    Post subject: Pearl Coloured Petals of a Sunset Moth Reply with quote

Finally have something good enough to showcase! Lighting is spot on to my taste and lots of detail can be seen.

Using my new vertical setup, allows easier lighting and specimen placement.

I found an area which resembles the colour of pearls. It looked somewhat mundane on my D810's screen. I altered the lighting and gave it a run. Turned out to be my favourite stack of this moth.

Some petals have shades of gold, which resembles pearls as well.



For full resolution, here's the link: https://farm5.staticflickr.com/4906/46190475791_9ba11d7c6c_o.jpg

There are many areas of improvement in post. The brown petals show smudges which are just stacking artefacts, they can be removed in photoshop.

I'm happy with the results already. Going to improve on it in post maybe after I get up from bed.

Misc. Information:
D810, Mitutoyo Mplan Apo 10x, Stackshot at 3um/step, Zerene Stacker Dmap. ITL200 tube lens.
For lighting, I use halogen lamp illuminators.

Thanks!
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Lou Jost



Joined: 04 Sep 2015
Posts: 2889
Location: Ecuador

PostPosted: Wed Dec 05, 2018 11:28 am    Post subject: Reply with quote

That's stunningly sharp.
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Beatsy



Joined: 05 Jul 2013
Posts: 1431
Location: Malvern, UK

PostPosted: Wed Dec 05, 2018 5:22 pm    Post subject: Reply with quote

Dead sharp! Very impressive. Technically the step size is half what you can get away with, but no arguing with results! That ITL200 is likely big a factor too. I've been trying to convince myself I don't need one of those. You haven't helped Smile
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 19406
Location: Richland, Washington State, USA

PostPosted: Wed Dec 05, 2018 5:53 pm    Post subject: Reply with quote

Nice result, for sure.

About the sharpness, bear in mind that this is 36.30 megapixels on 35.9mm x 24.0mm, so the pixels are almost 4.9 microns across. That's about the same size as 14 megapixels in APS-C.

It's good that the corners held up well with the ITL. What orientation and spacings did you use?

--Rik
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Macro_Cosmos



Joined: 15 Jan 2018
Posts: 161
Location: Sydney

PostPosted: Wed Dec 05, 2018 11:25 pm    Post subject: Reply with quote

rjlittlefield wrote:
Nice result, for sure.

About the sharpness, bear in mind that this is 36.30 megapixels on 35.9mm x 24.0mm, so the pixels are almost 4.9 microns across. That's about the same size as 14 megapixels in APS-C.

It's good that the corners held up well with the ITL. What orientation and spacings did you use?

--Rik


Yep, I am looking to buy perhaps a used D7200 to take advantage of the smaller pixels. I did consider the D850, not anymore. I'll just get the shortcomings of the D810 covered with a field monitor. The new fullframe sensors with 16-bit ADC from Sony is very exciting to me.

I have the ITL200 reversed, 245mm away from the sensor. I use the SM2 tubes from Thorlabs. The corners of the ITL200 reversed are as good as the centre from my previous configuration, mounted according to the thorlabs website. This is a pretty big difference for sure.


Beatsy wrote:
Dead sharp! Very impressive. Technically the step size is half what you can get away with, but no arguing with results! That ITL200 is likely big a factor too. I've been trying to convince myself I don't need one of those. You haven't helped Smile


Yeah, I can get away with 5. Setting it at 3 however always seemed to yield far more detail.


Lou Jost wrote:
That's stunningly sharp.

Thank you!
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santiago



Joined: 25 Sep 2018
Posts: 86
Location: Nijmegen, The Netherlands

PostPosted: Wed Dec 05, 2018 11:45 pm    Post subject: Reply with quote

amazing quality and very sharp. also the pearl color is very nice indeed.
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Beatsy



Joined: 05 Jul 2013
Posts: 1431
Location: Malvern, UK

PostPosted: Thu Dec 06, 2018 2:46 am    Post subject: Reply with quote

Macro_Cosmos wrote:
...The new fullframe sensors with 16-bit ADC from Sony is very exciting to me.

Same here! The 60 megapixel one will be miiiine. Mwah haha haaa Smile

Not sure when it will be out though - or which camera range they'll put it in. Or even if it will be the same sensor - they could have another in the wings for exclusive use by Sony. The announced versions are for other manufacturers to use too. Could be an A9r but more likely A7r iv I reckon. A lot of the higher end lenses are out-resolving sensors these days (e.g. Otuses on A7rii) so the extra mpix will go some way to addressing that. Not so useful for macro/micro work (except at lower mags) but a true 16-bit dynamic range will really help with low contrast stuff (4-stops more leeway to stretch levels in post).

Waiting is such a pain....
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Lou Jost



Joined: 04 Sep 2015
Posts: 2889
Location: Ecuador

PostPosted: Thu Dec 06, 2018 7:36 am    Post subject: Reply with quote

Thanks for the added information.

Quote:
I have the ITL200 reversed, 245mm away from the sensor.


How much space did you leave between the ITL200 and the objective?
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mawyatt



Joined: 22 Aug 2013
Posts: 1680
Location: Clearwater

PostPosted: Thu Dec 06, 2018 8:13 am    Post subject: Reply with quote

Beatsy wrote:
Macro_Cosmos wrote:
...The new fullframe sensors with 16-bit ADC from Sony is very exciting to me.

Same here! The 60 megapixel one will be miiiine. Mwah haha haaa Smile

Not sure when it will be out though - or which camera range they'll put it in. Or even if it will be the same sensor - they could have another in the wings for exclusive use by Sony. The announced versions are for other manufacturers to use too. Could be an A9r but more likely A7r iv I reckon. A lot of the higher end lenses are out-resolving sensors these days (e.g. Otuses on A7rii) so the extra mpix will go some way to addressing that. Not so useful for macro/micro work (except at lower mags) but a true 16-bit dynamic range will really help with low contrast stuff (4-stops more leeway to stretch levels in post).

Waiting is such a pain....


Steve,

I'm not sure that "true' 16 bit DR is available from the smaller pixels (higher pixel density) yet, unless Sony has uncovered something. If this is the case then 16 bits will be like "empty magnification", with no real benefit in image DR.

I'm sure when some folks (Bill @ PtP) get there hands on these new sensors we'll find out, I hope it's true as a couple extra bits (stops) would be very useful indeed.

Best,
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Macro_Cosmos



Joined: 15 Jan 2018
Posts: 161
Location: Sydney

PostPosted: Thu Dec 06, 2018 11:33 am    Post subject: Reply with quote

Lou Jost wrote:
Thanks for the added information.

Quote:
I have the ITL200 reversed, 245mm away from the sensor.


How much space did you leave between the ITL200 and the objective?


I haven't experimented too much and still don't really see an adequate way to determine the best distance. Currently, it's about 65mm spacing. Measuring the exact amount wouldn't be simple, since my tubing is too long. I have the objective and adapter deep in one of the tubes.

Unfortunately thorlabs doesn't offer a m26-sm2 adapter and their adjustable helicoid tubes are too expensive. I use the rotating threaded types, one which is being wasted acting as a 20mm spacer for the itl200.

Now that I have a vertical setup, using a resolution chart is much easier. It should be a good start.

~ MC
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Lou Jost



Joined: 04 Sep 2015
Posts: 2889
Location: Ecuador

PostPosted: Thu Dec 06, 2018 11:41 am    Post subject: Reply with quote

Thanks for that distance. It is very close to the optimum distance that Robert found for it. That's reassuring,
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nanometer



Joined: 30 Apr 2016
Posts: 165
Location: Tucson, AZ

PostPosted: Sun Dec 09, 2018 9:25 am    Post subject: Reply with quote

Excellent. It's amazing how many little differently colored and shaped areas there are on this moth.
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