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My first 5½ hours exposure film startrail

astrophotography
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#1 marooned

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Posted 25 March 2019 - 06:06 PM

This is my first attempt to do startrail with film!
Single shot of about 5½ hours exposure


The shutter was open for almost the 1/4 of the duration of the sidereal day, thus recording almost one-fourth of the circular path that each star follows around the Polaris..!

Location: Eastern Crete, Greece.

Stuff used: Zenit TTL, Revuenon 35mm f/2.8, Ilford HP5+ 400ISO
Developer: HC-110 (Dil B), Developing time 5min @ 20oC
Scanned with Epson V550, Some contrast improvement with GIMP

Attached Thumbnails

  • film_startrail.jpg

Edited by marooned, 25 March 2019 - 06:11 PM.

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#2 petert913

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Posted 25 March 2019 - 06:21 PM

That is classic.   I remember we always worried about the film "fogging" with long exposures.

You can see some of that here, but that's the way it's meant to be !  Nice project and result.


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#3 marooned

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Posted 25 March 2019 - 06:49 PM

Thanks! The result could have been better if I hadnt slept and some faint twilight hadnt appeared when  finally stopped the exposure grin.gif


Edited by marooned, 25 March 2019 - 06:51 PM.


#4 TOMDEY

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Posted 25 March 2019 - 08:47 PM

Very nice! I used to do a lot of those. PS: I notice that the handedness is flipped in your image (I recognize the stars).    Tom



#5 Uwe Pilz

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Posted 26 March 2019 - 06:45 AM

I like that shot very much. Did you use the lens full open?



#6 marooned

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Posted 26 March 2019 - 04:14 PM

Very nice! I used to do a lot of those. PS: I notice that the handedness is flipped in your image (I recognize the stars).    Tom

True! It seems that i scanned this negative with the shiny side on Transparency Unit ( not the emulsion side which is the correct way)
so i will try again the scan with the right way, it may (?) also improve the contrast of the background.
Thanks!
 

 

I like that shot very much. Did you use the lens full open?

No, I think at this shot it was  at f/4, while the maximum of the lens is f/2.8


Edited by marooned, 26 March 2019 - 04:16 PM.


#7 canondslr

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Posted 28 March 2019 - 04:04 PM

Nice job!   Something special about film star trails!  

 

How dark is your sky? 

 

Tom



#8 marooned

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Posted 31 March 2019 - 11:30 AM

Nice job!   Something special about film star trails!  

 

How dark is your sky? 

 

Tom

I would say the sky was about 4 in Bortle scale at the start of the exposure but unfortunately i overslept and some very  faint twilight had appeared before i stopped the exposure..



#9 Alen K

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Posted 01 April 2019 - 05:46 PM

Wow! Someone is still using a Zenit. I started in 1977 with a Zenit E; the only 35mm SLR I could afford at the time (IIRC it cost me $75). It was stolen years later and I replaced it with a Pentax K1000, which of course was still a budget camera but in almost all respects superior. (The K1000 wouldn't have survived being run over by a Russion take like the Zenit probably could but that was the only advantage of the Zenit.) The TTL has the one feature noticeably absent from the E: through-the-lens metering (hence its name).


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#10 SteveA2080

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Posted 22 January 2020 - 12:40 PM

I am shooting a Pentax K1000 currently. I am on my second roll of Fujifilm 400 ISO (only thing locally available for some odd reason). I am only on a tripod for now until I get my exposures back and can determine where i am going wrong.  I will place her on one of my 8" SCT's once I get more time to guide and shoot.

 

Anyone have any information on what the K1000 likes to be done to her to get best images?  I am on star trails and lunar shots now with a 70 - 210 lens circa late 90's. Moving to guided shots in a few months. Hopefully with a 77D DSLR on my 8" as well!

 

Also, does the ISO setting on the camera body mean anything for astrophotography? I tend to keep the setting at 400 ISO, but I am uncertain.

 

Thanks all.



#11 Alen K

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Posted 22 January 2020 - 06:19 PM

I am shooting a Pentax K1000 currently. I am on my second roll of Fujifilm 400 ISO (only thing locally available for some odd reason). I am only on a tripod for now until I get my exposures back and can determine where i am going wrong.  I will place her on one of my 8" SCT's once I get more time to guide and shoot.

 

Anyone have any information on what the K1000 likes to be done to her to get best images?  I am on star trails and lunar shots now with a 70 - 210 lens circa late 90's. Moving to guided shots in a few months. Hopefully with a 77D DSLR on my 8" as well!

 

Also, does the ISO setting on the camera body mean anything for astrophotography? I tend to keep the setting at 400 ISO, but I am uncertain.

There's not much you can do with a film camera to get a better astrophoto. For astrophotography they are literally just film holders. For my Olympus OM-1, I did install a different (brighter) ground-glass focusing screen, which made framing objects easier (I did not rely on it to focus) but that is not an option for the K1000.

 

Regarding the ISO, you normally set it to match that of the film you are using. It allows the metering system to work correctly with the speed of the film. But for deep-sky astrophotogaphy the light meter is useless (it might work okay for lunar stuff through the telescope). So if you are not using the camera for daytime shots or for lunar close-ups through a telescope, the ISO setting won't matter. You can even take the little battery out. It is only used by the metering system. The shutter doesn't need it.   


Edited by Alen K, 22 January 2020 - 06:53 PM.

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#12 sunnyday

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Posted 13 February 2020 - 10:40 PM

nice 


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