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Author Topic: Venus transit  (Read 6635 times)

epsiloneri

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Venus transit
« on: June 04, 2012, 11:12:18 PM »
Is anyone planning to shoot the Venus transit tomorrow? From where I live the Sun will rise with Venus transiting, so I'm considering cool sunrise options (weather permitting). A distant familiar building in the foreground, or just the Sun reflecting in open water are some ideas I have. For planning location, I've found Google Earth useful.

In case you wonder if it's worth it: consider that few alive today will have a chance to see another Venus transit. Next one is in December... 2117.


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Venus transit
« on: June 04, 2012, 11:12:18 PM »

dr croubie

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Re: Venus transit
« Reply #1 on: June 05, 2012, 08:18:27 AM »
Yeah, I only just found out about it an hour ago and just packed a whole lot of stuff to take to work tomorrow (will be a lunch-hour shoot).
Jupiter 250/3.5, two 2x TCs (so 1000mm f/14 to f/64), ND400, ND8 stacked, will that be enough? (add an extra Kenko 1.4xTC if i have to).
Also taking 70-300L (although I know it flares like crazy pointing straight at the sun), and a pinhole set (at 42mm they're f/177 pinhole, f/91 zone sieve, f/55 zone plate, plus a metre of extension tubes and bellows), and the lensbaby pinhole why not.
If I cook my 7D, i've also packed the EOS3 with a roll of 50ISO velvia.

Anyone know if that's dark enough? Or should I stop past the local camera shop on the way to work and see if they rent out ND10,000s?
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mws

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Re: Venus transit
« Reply #2 on: June 05, 2012, 09:04:04 AM »
I'm not going to be able to shoot this, but I'm really excited to see what kind of photos people capture of this.

Also a great bit of software for planing this sort of thing is Stellarium

squarebox

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Re: Venus transit
« Reply #3 on: June 05, 2012, 09:13:36 AM »
I'm going to be shooting tomorrow weather permitting... It is suppose to rain in the morning.

I will be shooting with a 18-200 EF-S on a 550D with a ND5 (10,000) filter.  Same i used for shooting the eclipse  a few weeks ago. 

i totally wish i had a longer lens and one that i could use teleconverters with.

I think i read somewhere you need to have at least N3.8 to shoot a solar eclipse.  Just don't look through the viewfinder as it's blocking UV and IR.  Gotta use Liveview.
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Re: Venus transit
« Reply #4 on: June 05, 2012, 09:16:03 AM »
I'm planning on it, but the weather is planning otherwise with cloud and rain expected. Also due to my location I have less than 1h window so the chances of getting a clear shot are extremely low.
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squarebox

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Re: Venus transit
« Reply #5 on: June 05, 2012, 10:48:55 AM »
Apparantly the trick for getting the black drop effect is to blur the shot a little. 

Luckily for me, I'm in Japan and we have a 7 hour window
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epsiloneri

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Re: Venus transit
« Reply #6 on: June 05, 2012, 11:06:16 AM »
Anyone know if that's dark enough? Or should I stop past the local camera shop on the way to work and see if they rent out ND10,000s?
If you live somewhere where the Sun will rise or set with Venus transiting, then you really don't need to go that dark (just as you often can shoot the sun during last part of sunset without filters). If you have the chance to catch the Sun before the transit event, i.e. today, you can try out your equipment beforehand and practice on a couple of sunspots that are on now, and that you should be able to catch. Venus will be much easier to get than those sunspots, though.
« Last Edit: June 05, 2012, 11:08:07 AM by epsiloneri »

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Re: Venus transit
« Reply #6 on: June 05, 2012, 11:06:16 AM »

awinphoto

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Re: Venus transit
« Reply #7 on: June 05, 2012, 11:36:28 AM »
Where I am it's starting around 3pm my time and ending well past sunset our time.  I will take a whack at it if clouds work well for me...  Got a filter used for the eclipse... flimsy film, not solid glass filter, but worked well last time.  Prob wont be as "wowing" as the annual eclipse but once in a lifetime things anyways. 

Canon 5d III, Canon 24-105L, Canon 17-40L, Canon 70-200 F4L, Canon 100L 2.8, 430EX 2's and a lot of bumps along the road to get to where I am.

TrumpetPower!

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Re: Venus transit
« Reply #8 on: June 05, 2012, 03:21:57 PM »
Yeah, I only just found out about it an hour ago and just packed a whole lot of stuff to take to work tomorrow (will be a lunch-hour shoot).
Jupiter 250/3.5, two 2x TCs (so 1000mm f/14 to f/64), ND400, ND8 stacked, will that be enough? (add an extra Kenko 1.4xTC if i have to).

That'll probably be enough to prevent the Sun from being photographically overexposed, but I still wouldn't look through the viewfinder at all or leave the camera pointing at the Sun for more than a few seconds at a time (use live view to frame and focus). The Sun puts out an awful lot of energy at wavelengths neither you nor your camera can see, and that energy can and will fry your eyes without you feeling a thing or burn a hole in the shutter curtains or do any number of other nasty things.

You know that trick of starting a fire by using a magnifying glass? You know what a camera lens is? And the trick still works with the bottom of a coke bottle....

I'll have the 400 f/2.8 with a Baader solar viewing telescope filter. The filter will probably come off a couple minutes before the Sun reaches the Phoenix skyline...at which point it'll be live view for the camera.

I'll also have a pair of those cheesy eclipse glasses for me to look at without the camera.

Cheers,

b&

dr croubie

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Re: Venus transit
« Reply #9 on: June 05, 2012, 05:35:21 PM »
Well, i've just woken up, apparently it starts in about half an hour, just after sunrise.

well, what would be sunrise, because there's about ND20,000 worth of clouds covering it. No chance of eye damage (or photos) today by the looks. Still gonna take the camera in the car to work and hope the cloud goes...
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dss166

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Re: Venus transit
« Reply #10 on: June 05, 2012, 09:49:38 PM »
I got lucky, the clouds just cleared enough to get a few clean shots. Taken east of Atlanta, GA. 50d with a 70-300L at 300mm, 1/8000, f32 with a 77mm 3 stop B&W ND hand held in front (don't have an ND for the 70-300 yet.)
Processed raw with the new lens correction feature in DPP at 50%, -2 exposure adjustment and a lot of cropping. Let me know what you think.

dss166

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Re: Venus transit
« Reply #11 on: June 05, 2012, 09:59:19 PM »
One more

vargyropoulos

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Re: Venus transit
« Reply #12 on: June 05, 2012, 11:11:10 PM »
I also got a few minutes of the Sun breaking free from cloud cover... just enough time to throw the 70-300 on the Rebel XT. I only had a UV filter on the camera so I could not see Venus while the Sun was completely out of the clouds... way too bright even 30 minutes before sunset when this photo was taken... I had to wait for the Sun to be partially hidden with some clouds

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Re: Venus transit
« Reply #12 on: June 05, 2012, 11:11:10 PM »

TexPhoto

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Re: Venus transit
« Reply #13 on: June 05, 2012, 11:23:35 PM »
I had about 5 minutes as it started, then lost it for 1/2 hour behind clouds. Then it popped out again for 5 minutes an I go these.


Untitled by TexPhoto, on Flickr


Untitled by TexPhoto, on Flickr
« Last Edit: June 05, 2012, 11:27:03 PM by TexPhoto »

jhpeterson

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Re: Venus transit
« Reply #14 on: June 06, 2012, 12:13:57 AM »
It was a mostly clear evening in the Upper Midwest and I was able to capture this only a few minutes before sunset.
I'd been busy working on a couple outdoor projects, but at the last moment ran inside and grabbed a 300mm 2.8 L and an EF 2x (III) converter.
Handheld and set on manual exposure, ISO 200 (my default), I shot several frames at 1/8000 with apertures ranging from 32-64.  Second-guessing, I could have dropped the ISO to 50 and would have enjoyed sharper results due to less diffraction, but isn't that what hindsight's for. 
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Re: Venus transit
« Reply #14 on: June 06, 2012, 12:13:57 AM »