Landscape Astrophotography Tutorial - First Night Out

**interested_observer** · 07-04-2011, 06:38 AM - **1 Like**

A good introduction - how to....

Vimeo

joebob · 07-04-2011, 08:02 AM

Really helpful. Thanks.

lizamo1 · 07-06-2011, 05:20 PM

Very helpful. thanks

LFLee · 07-07-2011, 03:58 PM

great advises -- I figure those out the hard way.
Add other things:
- Remove Filter!
- Make sure shake reduction is off (on lower-end model, K5 apparently turn that off automatically for long exposure);
- WB should be 'sun';
- Pentax lens infinity also more like Canon in the video, it goes pass infinity.

Hope he mention how to post-process the photo.

mojoe_24 · 07-14-2011, 08:40 PM

How many shots should you have to have trails?

Kade.Sirin · 07-14-2011, 10:18 PM

Mojoe, I believe a much longer exposure in bulb mode, maybe stopped down a bit & iso turned down slightly should provide for star trails.

Or if it is multiple exposures, maybe ten an hour all for an entire night to provide the necessary trails.

Just a guess though.

EdwardConde · 07-14-2011, 10:22 PM

I saw this vid last night and very very helpful... Good find!

Do you think on the focal length he is talking about 35mm equivalent? or Crop Sensor focal length?

Last edited by EdwardConde; 07-14-2011 at 10:36 PM.

v5planet · 07-14-2011, 10:39 PM

Ben Canales is a great photographer. You have to admire him when you think about the fact that he lives here in the gloomy northwest (and therefore has to gamble on whether it's going to be clear outside at night at all a lot), and is frequently standing around all night in the cold playing with composition.

akanarya · 07-14-2011, 11:55 PM

thanks for sharing, good advices

EdwardConde · 07-15-2011, 01:16 AM

My attempt at a Moon shot.. tried to follow what the video said and had to make some minor adjustments... for my particular lens (Tamron 10-24mm) I should have shot it at around f8 or so to have the schools in focus.. in the pic they look a bit blurry and bowed.. right ? or is that just my eyes from all the recent late nights!

thanks!

MRRiley · 07-15-2011, 08:21 AM

Originally posted by EdwardConde

I saw this vid last night and very very helpful... Good find!

Do you think on the focal length he is talking about 35mm equivalent? or Crop Sensor focal length?

One article that I found on the subject states that for "crop" cameras its the rule of "400"

Quote:

For crop body cameras take 400 and divide it by the focal length of your lens.

Taking photos of the stars | SnapBlog - Snapsort and LensHero

And this makes sense since if you take 400/50mm (actual focal length) =8sec it's the same as 600/75mm (effective focal length due to crop factor) = 8sec (assuming a 1.5x crop body like we have in the Pentax DSLRs). Of course this also means you can ignore the 400 and just divide by the "effective focal length/crop factor if you like...

Glad the OP posted this since I am going out into what passes for the mountains around here next weekend and hope to get some astrophotos with the K-5 and DA*16-50...

Mike

akanarya · 07-15-2011, 08:50 AM

Originally posted by MRRiley

One article that I found on the subject states that for "crop" cameras its the rule of "400"

Mike

thanks, I havent take it into account.

vrrattko · 07-15-2011, 11:24 PM

Originally posted by interested_observer

A good introduction - how to....

some useful tips - thanks for sharing ....

07-04-2011, 06:38 AM - 1 Like	#1
interested_observer Loyal Site Supporter Join Date: Jun 2009 Location: Tumbleweed, Arizona Photos: Gallery \| Albums Posts: 5,707	Landscape Astrophotography Tutorial - First Night Out A good introduction - how to.... Vimeo

07-15-2011, 08:21 AM	#11
MRRiley Veteran Member Join Date: Feb 2007 Location: Sterling, VA, USA Photos: Gallery \| Albums Posts: 6,275	Originally posted by EdwardConde I saw this vid last night and very very helpful... Good find! Do you think on the focal length he is talking about 35mm equivalent? or Crop Sensor focal length? One article that I found on the subject states that for "crop" cameras its the rule of "400" Quote: For crop body cameras take 400 and divide it by the focal length of your lens. Taking photos of the stars \| SnapBlog - Snapsort and LensHero And this makes sense since if you take 400/50mm (actual focal length) =8sec it's the same as 600/75mm (effective focal length due to crop factor) = 8sec (assuming a 1.5x crop body like we have in the Pentax DSLRs). Of course this also means you can ignore the 400 and just divide by the "effective focal length/crop factor if you like... Glad the OP posted this since I am going out into what passes for the mountains around here next weekend and hope to get some astrophotos with the K-5 and DA16-50... Mike Last edited by MRRiley; 07-15-2011 at 08:48 AM.*

07-15-2011, 11:24 PM	#13
vrrattko Veteran Member Join Date: Jun 2010 Photos: Albums Posts: 753	RE: Originally posted by interested_observer A good introduction - how to.... some useful tips - thanks for sharing ....

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Astrophotography	iClick	Pentax DSLR Discussion	1248	12-19-2021 05:07 PM
P52-3-46 - Landscape - Portrait Landscape	jmschrei	Weekly Photo Challenges	11	06-13-2011 12:32 AM
Astrophotography	Naturenut	Troubleshooting and Beginner Help	4	09-09-2010 07:27 AM
K7 And Astrophotography	Christopher M.W.T	Pentax DSLR Discussion	49	11-25-2009 08:51 AM
night landscape	little laker	Post Your Photos!	3	01-12-2007 12:00 AM

07-04-2011, 08:02 AM	#2
joebob Senior Member Join Date: Dec 2008 Location: Massachusetts Photos: Gallery Posts: 184	Really helpful. Thanks.

07-06-2011, 05:20 PM	#3
lizamo1 Inactive Account Join Date: Feb 2009 Location: arkansas Posts: 23	Very helpful. thanks

07-07-2011, 03:58 PM	#4
LFLee Veteran Member Join Date: Aug 2009 Location: Southern California Photos: Gallery \| Albums Posts: 2,292	great advises -- I figure those out the hard way. Add other things: - Remove Filter! - Make sure shake reduction is off (on lower-end model, K5 apparently turn that off automatically for long exposure); - WB should be 'sun'; - Pentax lens infinity also more like Canon in the video, it goes pass infinity. Hope he mention how to post-process the photo.

07-14-2011, 08:40 PM	#5
mojoe_24 Senior Member Join Date: Nov 2010 Posts: 241	How many shots should you have to have trails?

07-14-2011, 10:18 PM	#6
Kade.Sirin New Member Join Date: Jul 2011 Location: Las Vegas Posts: 12	Mojoe, I believe a much longer exposure in bulb mode, maybe stopped down a bit & iso turned down slightly should provide for star trails. Or if it is multiple exposures, maybe ten an hour all for an entire night to provide the necessary trails. Just a guess though.

07-14-2011, 10:22 PM	#7
EdwardConde Veteran Member Join Date: Jul 2010 Location: Los Angeles Photos: Gallery Posts: 1,520	I saw this vid last night and very very helpful... Good find! Do you think on the focal length he is talking about 35mm equivalent? or Crop Sensor focal length? Last edited by EdwardConde; 07-14-2011 at 10:36 PM.

07-14-2011, 10:39 PM	#8
v5planet Veteran Member Join Date: Jan 2010 Location: Seattle Photos: Albums Posts: 1,915	Ben Canales is a great photographer. You have to admire him when you think about the fact that he lives here in the gloomy northwest (and therefore has to gamble on whether it's going to be clear outside at night at all a lot), and is frequently standing around all night in the cold playing with composition.

07-14-2011, 11:55 PM	#9
akanarya Senior Member Join Date: Aug 2010 Location: Çankırı, Turkey Posts: 210	thanks for sharing, good advices

07-15-2011, 01:16 AM	#10
EdwardConde Veteran Member Join Date: Jul 2010 Location: Los Angeles Photos: Gallery Posts: 1,520	My attempt at a Moon shot.. tried to follow what the video said and had to make some minor adjustments... for my particular lens (Tamron 10-24mm) I should have shot it at around f8 or so to have the schools in focus.. in the pic they look a bit blurry and bowed.. right ? or is that just my eyes from all the recent late nights! thanks!

07-15-2011, 08:50 AM	#12
akanarya Senior Member Join Date: Aug 2010 Location: Çankırı, Turkey Posts: 210	Originally posted by MRRiley One article that I found on the subject states that for "crop" cameras its the rule of "400" Mike thanks, I havent take it into account.