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Astronomy and photography.

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autumn acid +

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Astronomy and photography.
Anybody dabble in it?

Took a pretty ordinary photo of the moon tonight, and it has my mind jogging a bit.

Would love to try and take some better photos, but it seems like telescopes and converters are the trick. $$$$ :S
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atrev2much +

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So yeah....

From his (^) photostream -

http://www.flickr.com/photos/sharpsh...n/photostream/

Quote:

Originally Posted by chimby

I did a traineeship in network admin before I got a job as a fgt.

Quote:

Originally Posted by Evangelion001

For sure!! they are developing a double headed machine, so you can do your arse and vag at the same time, should be on our shores next year( I am looking REALLY forward to that one)

I give upFlickr&BL0G

Last edited by atrev2much: 17-Jun-11 at 02:36pm

genericitis +

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with a mates 400mm lens, haven't done much more than just take pics of the moon so far

she gets an orgasm and fireworks, i get the romantic glow of helicopter spotlights
autumn acid +

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Yeah, I tried to rattle a photograph off at 200mm on a dx kit lens. Not the best!

I think a few people are telling porky pies when they post up detailed shots of craters in the moon and say they took it with a g12 or s95. Someone was writing that they used the "digital zoom". All I got was a speckled white blob.
EAD
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*edit*
Bleh, try again tomorrow..

Quote:

Originally Posted by chimby

I did a traineeship in network admin before I got a job as a fgt.

Quote:

Originally Posted by Evangelion001

For sure!! they are developing a double headed machine, so you can do your arse and vag at the same time, should be on our shores next year( I am looking REALLY forward to that one)

I give upFlickr&BL0G

Last edited by atrev2much: 17-Jun-11 at 11:00pm

Hemerage +

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All I know is that you need a relatively quick shutter speed, and that Live View focusing is mega-win.
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Really? I would have thought a tripod and focusing to infinity would get you there.
quantum8 +

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I wanna try this sometime:

http://vimeo.com/4505537

Just don't think i can justify the cash to convert a camera to full spectrum imaging though!
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yep, I've had a few people do me from behind while I've only done one

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Quote:

Originally Posted by autumn acid View Post

Would love to try and take some better photos, but it seems like telescopes and converters are the trick. $$$$ :S

Taken a few star trail shots with film (but nothing drawdroppingly spectacular). Was surprised to discover the twinkly 'white
stars actually reveal their true individual colours on film (as our eyes don't do too well with colours in the dark).

As for telescopes, it would appear the spectacular cloud-type objects in the sky are actually quite large, meaning a telescope isn't necessarily required. I've yet to point a 135mm lens @ f/2 and a ISO 128,000 at the heavens and see what I get (expecting a shit load of digital noise!), my understanding is, however, that a tracking motor as used by telescopes to keep them on target is what's required to retain the exposure - and without trails - and to really bring out the detail.
Spectrum +

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And to illustrate just how large these spectacular scenes are across the night sky, check this time lapse photography by our 'Arctic Light" friend (whose work I posted further down the page).

http://vimeo.com/22439234

Stunning, huh?!
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great thread.. i found a youtube video with these guys filming back at the Earth.. he goes past all these places like Texas and then says.. this is Australia haha.. was kool..its in my favs on my YT channel
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Quote:

Originally Posted by DuncanM View Post

Really? I would have thought a tripod and focusing to infinity would get you there.

I expected that too -- but from memory, it had to be pulled back a touch to get crater detail.
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Quote:

Originally Posted by Hemerage View Post

I expected that too -- but from memory, it had to be pulled back a touch to get crater detail.

As far as I know, lenses are purposefully engineered to focus beyond infinity.

A couple of possible reasons:
1) to compensate for temperature fluctuations (in the ambient air??)
2) to allow a buffer for the autofocus mechanism to seek out the optimal focus at the end of its travel. Without a margin of overshoot, the focus system can't hunt down the sharpest of contrasting objects by moving the focus forwards and backwards.
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Seems logical. Let's go with that!

I'd like to go have a play -- but the longest lens in the house is a 135, on FF, doesn't show shit when looking at the moon
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Quote:

Originally Posted by Hemerage View Post

All I know is that you need a relatively quick shutter speed, and that Live View focusing is mega-win.

My edited post previous was a bit weird.

First shot i did, manual focused.

Then remembered live view magnification, used that and auto focus, and the focus on the shot actually turned out worse...?

Bit confused..

Quote:

Originally Posted by chimby

I did a traineeship in network admin before I got a job as a fgt.

Quote:

Originally Posted by Evangelion001

For sure!! they are developing a double headed machine, so you can do your arse and vag at the same time, should be on our shores next year( I am looking REALLY forward to that one)

I give upFlickr&BL0G

Last edited by atrev2much: 19-Jun-11 at 05:03pm

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Use Live Mode at 10x mag, and manual focus? That's how I've used Live....
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live view x10 + auto focus.
Didn't work very well..

Quote:

Originally Posted by chimby

I did a traineeship in network admin before I got a job as a fgt.

Quote:

Originally Posted by Evangelion001

For sure!! they are developing a double headed machine, so you can do your arse and vag at the same time, should be on our shores next year( I am looking REALLY forward to that one)

I give upFlickr&BL0G
Hemerage +

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I'm saying use Live Mode AND manual
NismoR31 +

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yeah live view x10 + manual works well. was using it tonight.
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Yes, I have dabbled:

Hemerage +

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Looks pretty cool! How long of an exposure is that?
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I think it was 19 minutes? I could hear a gust of wind coming down the hill so I closed the shutter before it could screw up the shot. I spent a good part of the night trying longer and longer shots. The one before this was 15 minutes, but the extra few made a big difference. It was about 1am when I took this, and it was getting cold, so I called it a night. Would be keen to do it earlier in winter next time so I can get the Orion Nebula, or a galaxy.
quantum8 +

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beautiful capture!

you must be using a motion compensator to adjust for the movement of stars, no?
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yep, I've had a few people do me from behind while I've only done one

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Thanks mate. No, I've got a full telescope and mount setup that's a bit complicated, but basically it tracks one star and moves the mount accordingly to match the movement of the earth. If this makes sense:

- Mount is a HEQ5 Pro (with the Synscan remote/computer)
- Skywatcher ED80 scope (this is the imaging scope the SLR is 'plugged' into
- Skywatcher guide scope (just a small land telescope) that's mounted on top, which has a orion guide camera plugged into it
- Setup above is plugged into my laptop which I use for live view focusing, and guiding software which is hooked up to the orion camera and tracks a star and adjusts/counters the mount's errors (due to bad alignment, faults etc)

As you can imagine, it's a pain in the arse to set up, but extremely rewarding.
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yeah certainly sounds like you got an azimuth compensator

expensive piece of kit...certainly worth it though!
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Quote:

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yep, I've had a few people do me from behind while I've only done one

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Quote:

Originally Posted by quantum8 View Post

yeah certainly sounds like you got an azimuth compensator

expensive piece of kit...certainly worth it though!

Sorry, I don't know why I thought this, but when you said "motion compensator", for some reason I was thinking you were referring to post-photo editing software. Yes, the telescope mount is all electronic, so it all compensates for the movement of the earth.

It is fairly expensive (in my head I tell myself it isn't), but I guess all up, excluding the camera, it would be about $2k - stuff that I've bought over time. If you're just into the photography side of things, that's "all" you'd need, but if you want to use the telescope for pleasure, I'd be going for a much bigger apature.
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Both these shots taken with a Tamron 70-300mm f/4.5-5.6 lens, and cropped at between 300-400% and post-edited.



Hemerage +

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Thinking of going for a drive tonight to try for star/startrails.... weather permitting. Pure cloud last night
Anyone want to come?

Thinking towards Lake Moogerah.
Villephant +

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wwhat time would you be leaving, and from where?
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looking fairly cloudy tonite too
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Quote:

Originally Posted by liberabit View Post

yep, I've had a few people do me from behind while I've only done one

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Quote:

Originally Posted by Hemerage View Post

Thinking of going for a drive tonight to try for star/startrails.... weather permitting. Pure cloud last night
Anyone want to come?

Thinking towards Lake Moogerah.

I will, if you wait for the next New Moon

That big white orb in the sky doesn't do your startrails any favours I've come to find out...

Edit: Next new moon 21st Feb
.music. .pictures. .project:tryptamine.

Last edited by Skerik: 08-Feb-12 at 01:43pm

Reason: yes

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That didn't occur to me! So full moon == flood light == same as a light polluted city? What a jerk moon!
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lol
damn, stupid clouds, + jerk moon = sadfase
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So it's totally pissing down
Villephant +

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yup, staying at home it is
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I reckon it may be alright tonight - several layers of clouds, all moving different speeds with the odd touch of sky poking through

Won't be great for startrails or moon, but should be ok for landscapes

I even thought about scooting round to Nudgee Beach for a sunset shot then remembered Brisbane's roads become instantly fucked and everybody has suddenly forgotten how to drive when it starts to rain...

Maybe later
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Villephant +

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i've never done a timelapse before, maybe i should get outside and do that???
EDIT: cant see shit from this angle.. fuck it, dont want to risk getting rained on if i go somewhere lol
wow i am so lazy
also i left my sd card in the house, so i went outside with the camera and couldnt do anything
retard!!!
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Yes, do!

I reckon it's gunna be a pretty ok sunset, I'm gunna head to a spot round the corner and take yet ANOTHER shot of Brisbane

*sigh*

Hate the fact I've been grounded by my doctor till March, I want to elsewhere photo make!

Arrrgh
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does everyone here live in brisbane??
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I think...
heme / skerik / ruthychins / quantum / liberabit / rancho / pez / me / ???..
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shit might as well call this the Brissy forum
Hemerage +

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Sunset was decent... but I rushed out about 7mins too late as usual.
Snapped a few... thinking of heading towards Manly or something tonight.
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i'm in sydney
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Sunset Brisbane by Captain.Terrific, on Flickr

That's what ours looked like - how bout yours?
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what? sif i've been outside since i got home from work

i think we had a few more clouds than that round here.

ps your horizon is crooked
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i forgot the sunset doesnt last very long...
i got distracted by a laser pointer (nothing to do with a camera, don't worry)
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Quote:

Originally Posted by NismoR31 View Post

ps your horizon is crooked

Don't blame me, I didn't build it...

or maybe i should just straighten it somewhat - thanks for that
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Quote:

Originally Posted by Papanikolas View Post

shit might as well call this the Brissy forum

Ewwww

Quote:

Originally Posted by chimby

I did a traineeship in network admin before I got a job as a fgt.

Quote:

Originally Posted by Evangelion001

For sure!! they are developing a double headed machine, so you can do your arse and vag at the same time, should be on our shores next year( I am looking REALLY forward to that one)

I give upFlickr&BL0G
Hemerage +

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Had a reasonably half-assed attempt at startrails last night.
Cloud was over the whole time, was ready to leave -- then it started clearing! Set up, locked the shutter release and killed 1hr in the darkness at Manly (creepy)

Got home to find cloud had tried their best to ruin the shot.... but saved it, I hope. >_<


Manly_startrails by m_mkill, on Flickr
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