December 10, 2017, 11:04:53 PM

Author Topic: ISS exposure  (Read 2197 times)

Don Haines

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ISS exposure
« on: September 02, 2017, 06:20:32 PM »
I am wondering what exposure and ISO people use for taking a picture of the ISS as it passes overhead....

I am going to try it with a 600F6.3 lens with a 1,4X teleconverter, manual focus, so I will be shooting at F11...

Any advice? Thanks!
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ISS exposure
« on: September 02, 2017, 06:20:32 PM »

Click

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Re: ISS exposure
« Reply #1 on: September 02, 2017, 06:46:17 PM »
Hi Don,

You'll find some tips here:

https://photographingspace.com/photographing-the-iss/

I hope this helps.

Cheers

Don Haines

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Re: ISS exposure
« Reply #2 on: September 02, 2017, 07:04:15 PM »
Hi Don,

You'll find some tips here:

https://photographingspace.com/photographing-the-iss/

I hope this helps.

Cheers

That article was about capturing a streak with a bit of visible landscape.... I'm trying to just get the ISS as a still image... and yes, I know the image will only be a few pixels wide.....
The best camera is the one in your hands

KeithBreazeal

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Re: ISS exposure
« Reply #3 on: September 02, 2017, 07:49:19 PM »

this is a comp for size comparison with the moon

Moon and ISS © Keith Breazeal by Keith Breazeal, on Flickr

This shows the uncropped image with inserts of the actual pixels before resizing, then after.

ISS 28 Dec 2013 final comp © Keith Breazeal by Keith Breazeal, on Flickr
Canon 5D Mark IV, Canon 5DS, 5D Mark III, Canon M5, 7D, SL-1, Canon 300L 2.8, 100-400L IS, 70-200L IS, 24-105L, 10-22mm, Rokinon 14mm 2.8, Tokina 16-28 f2.8

Don Haines

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Re: ISS exposure
« Reply #4 on: September 02, 2017, 07:57:49 PM »

this is a comp for size comparison with the moon

Moon and ISS © Keith Breazeal by Keith Breazeal, on Flickr

This shows the uncropped image with inserts of the actual pixels before resizing, then after.

ISS 28 Dec 2013 final comp © Keith Breazeal by Keith Breazeal, on Flickr

Fantastic! Just what I needed and more!

So if I use a 7D2, the image is 5472 pixels wide instead of 5184, and with 600mm instead of 400mm, I should be able to get a whoppin' big 51 pixels on the target!
The best camera is the one in your hands

KeithBreazeal

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Re: ISS exposure
« Reply #5 on: September 02, 2017, 08:09:03 PM »

this is a comp for size comparison with the moon

Moon and ISS © Keith Breazeal by Keith Breazeal, on Flickr

This shows the uncropped image with inserts of the actual pixels before resizing, then after.

ISS 28 Dec 2013 final comp © Keith Breazeal by Keith Breazeal, on Flickr

Fantastic! Just what I needed and more!

So if I use a 7D2, the image is 5472 pixels wide instead of 5184, and with 600mm instead of 400mm, I should be able to get a whoppin' big 51 pixels on the target!

Yes!  I used the 100-400 after trying the 300 because the ISS is a speck and waving the prime all over trying to find it was a pain.  I zoom out, acquire, then zoom in.  Orbit angle and sun angle will produce widely varied results.  Critical focus is difficult.  I found that continuous shooting while varying the manual focus a bit produced more "keepers".(less blurry- LOL)
I saved the raw file as a tiff, then went through at least 10 gradual resizing crops.
Canon 5D Mark IV, Canon 5DS, 5D Mark III, Canon M5, 7D, SL-1, Canon 300L 2.8, 100-400L IS, 70-200L IS, 24-105L, 10-22mm, Rokinon 14mm 2.8, Tokina 16-28 f2.8

privatebydesign

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Re: ISS exposure
« Reply #6 on: September 02, 2017, 08:45:40 PM »
.... then went through at least 10 gradual resizing crops.

Keith, can you elaborate on that a bit? Did you use PS as I found little difference between 'stepped' increases and one large one. Also auto resize seemed perfectly adequate for almost every use. But I'd love to hear your methodology because it looks very good. Thanks.
Too often we lose sight of the fact that photography is about capturing light, if we have the ability to take control of that light then we grow exponentially as photographers. More often than not the image is not about lens speed, sensor size, DR, MP's or AF, it is about the light.

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Re: ISS exposure
« Reply #6 on: September 02, 2017, 08:45:40 PM »

KeithBreazeal

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Re: ISS exposure
« Reply #7 on: September 02, 2017, 10:37:08 PM »
.... then went through at least 10 gradual resizing crops.

Keith, can you elaborate on that a bit? Did you use PS as I found little difference between 'stepped' increases and one large one. Also auto resize seemed perfectly adequate for almost every use. But I'd love to hear your methodology because it looks very good. Thanks.

I use an old program (Digital Image Pro 9) to resized and crop.  I start with the largest file size the software will handle, then crop 10-20% each pass.  Each pass takes about 5-10 seconds.  I set the dpi at 300.
Canon 5D Mark IV, Canon 5DS, 5D Mark III, Canon M5, 7D, SL-1, Canon 300L 2.8, 100-400L IS, 70-200L IS, 24-105L, 10-22mm, Rokinon 14mm 2.8, Tokina 16-28 f2.8

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Re: ISS exposure
« Reply #7 on: September 02, 2017, 10:37:08 PM »