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Messages - rpt

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856
Landscape / Re: Post Your Best Landscapes
« on: May 28, 2013, 11:39:12 AM »
Fantastic imagery from all over the world... It never ceases to blow me away.  I often have to force myself not to think about all the places I'll never see except in someone else's images from somewhere around the globe... Thanks everyone for sharing your world with us!   :D
+1,000,000,000.......

857
Landscape / Re: Post Your Best Landscapes
« on: May 28, 2013, 11:38:08 AM »
^^^Same here. The #2 and the last one with the kid. Well done!
Same here. The one with the kid has a magical quality about it for me.

858
1D X Sample Images / Re: Any Thing shot with a 1Dx
« on: May 27, 2013, 10:20:50 PM »
The adult and baby Grebes have been putting on a great show for the last week.  They have so much character and the adults are exceeding patient with the young ones they are trying to feed.

I also like taking photographs of birds in flight, especially take offs.
 
Shot details:
Grebe 3806, 1/2000, 840 mm, ISO 1,600
Grebe 6459, 1/3200, 840 mm, ISO 4,000
Wood Duck 9435, 1/6400, 280 mm, ISO 1,600
Wood Duck 0201, 1/1600, 280 mm, ISO 1,250
Excellent! I love the last one and the second one.

859
Animal Kingdom / Re: Your best animal shots!
« on: May 27, 2013, 11:12:41 AM »

I'd say you are pretty good! I've never been able to get such a nice dragonfly photo. Welcome to CR :)

Edit- If you don't mind, what equipment and settings did you use to shoot the dragonfly? I rarely see them and they buzz by very fast and never seem to hold still.

Here in switzerland we have a lot of ponds with nice paths made of wood so you can visit them. There you will find hundreds of dragonflies and also a lot of water snakes, birds and other various small insects.

If you wait near the water for a few minutes dragonflies will think that you are just a newly emerged tree and start ignoring you or even land on you.

Now you have to learn their flight path, usually they fly the same path all the time. So prefocus and wait till you have a chance to shoot.

I have a 60D and a 150 mm Sigma Macro. So I used rapid fire and tried to manually focus on the dragonfly. Perhaps you can use auto focus if you have a better camera.

My settings were: 1/125, f/9, no flash.



This is also example of a butterfly flying the same path for 20 minutes try to impress a mate. You would need a lot of luck to get such a shot. But if they do not alter their flight path at all its pretty easy to even focus in advance.
Wow! lovely capture! I never thought there would be water snakes in Switzerland!

860
HDR - High Dynamic Range / Re: Post your HDR images:
« on: May 27, 2013, 11:08:59 AM »
Wow! Such great pics. The in camera HDR is terrible! I must get one of the HDR plugins. Suggestions please :)

I think the two most popular ones are Photomatix and Nik Software's HDR Efex Pro. Photomatix is cheaper (now that all Nik plugins are bundled together), probably more powerful and with a steeper learning curve. HDR Efex Pro costs more because all the Nik plugins are bundled together since Google bought Nik, and I think it's a little easier to learn but doesn't give you the level of control that Photomatix does. If others disagree, please correct me; it's been awhile since I used Photomatix.

The upside of buying the Nik bundle is that you get five other plugins, too; Silver Efex Pro, Viveza and Color Efex Pro were all particularly useful additions for me.

 Really, though, I don't think you can go wrong with either option for HDR processing.
mpetersheim, thanks. I will check them out.

861
HDR - High Dynamic Range / Re: Post your HDR images:
« on: May 27, 2013, 10:13:00 AM »
Wow! Such great pics. The in camera HDR is terrible! I must get one of the HDR plugins. Suggestions please :)

862
Animal Kingdom / Re: Your best animal shots!
« on: May 27, 2013, 10:11:11 AM »
Damp dark day here today, the Squirrel was in focus till he jumped. AF just didn't follow him though.
Still thought I'd post it anyway. I hope it isn't my best animal shot!
Cheers Brian

Historic shot! You have posted the second photo (the first one was taken by fohtohz) which illustrates the Nobel prize worthy theory of localized gravity malfunction recently put forth by rpt (in the "show your bird portraits" post thread). ;D
There you go! The experiment is repeatable!

I'm on my way, I'm on my way to visit the wizard of Nobel!
 :P

863
1D X Sample Images / Re: Any Thing shot with a 1Dx
« on: May 27, 2013, 10:06:50 AM »
For you Edward.
It's cheetah day!




Wow sanj ! Have you been practising ?!

Now that picture doesn't need a sky  ;).  Really good.  :)

hahahahahahahahahahahahahahahahahah..................
Lovely pic. Another B&W candidate :)
Or sepia even...

864
Lenses / Re: Focus and recompose related question
« on: May 27, 2013, 10:03:53 AM »
Ting! well looks like the penny finally dropped :D

So I read a few more articles and all of them refer to a plane of focus. So here is my new (and hopefully correct) understanding. The lens is shaped such that the focus of an image on the sensor or film is done for a plane parallel to the plane of the receptor. Thus the focusing distance indicated by the lens is the perpendicular distances between the two planes. See, that was my problem - I always thought that things would be in focus on an arc whose radius was the focusing distance. So in that case F&R would have worked - and it did for me from '67 till 2000 as most of my outputs were either contact print of 120 film or 5 by 3 or 6 by 4 prints.

Neuro, thanks for persisting :)

Others, thanks for the inputs.

So I had better learn how to do back button focus and selecting the appropriate AF point...

865
Lenses / Re: Focus and recompose related question
« on: May 26, 2013, 12:49:52 PM »
Surely there has to be some computation of angles internally to identify the focusing plane in order to eliminate the back-focus.

Why does there have to be?  The point is, with a fast lens shot wide open, don't focus/recompose. Use an outer focus point so you don't have to move the camera.  With narrow apertures and/or distant subjects, the deeper DoF masks the backfocus, so focus/recompose is ok.
:)

Sorry, I don't doubt that it needs to be done. The programmer in me is curious about how it is implemented thats all.

866
Lenses / Re: Focus and recompose related question
« on: May 26, 2013, 10:56:40 AM »
Sorry, incorrect inference. There's no 'computation of angles' on a Canon camera. Using an outer AF point eliminates backfocus if it enables you to focus on your subject without recomposing, reduces backfocus if it means you don't move the camera as much to get the composition you want.

I state 'Canon camera' because some Hasselblad bodies use a gyro sensor to detect camera rotation during recomposition, and adjust focus to compensate.
See, the Hasselblad thing makes sense to me. Surely there has to be some computation of angles internally to identify the focusing plane in order to eliminate the back-focus.

Thanks for the inputs.

867
Lenses / Re: Focus and recompose related question
« on: May 26, 2013, 09:36:13 AM »
http://www.visual-vacations.com/Photography/focus-recompose_sucks.htm
Thanks. So what I infer from this article is that selecting an AF point other than the center point the camera computes the angle to the subject and derives the focus plane from that. Is that a correct inference? See none of the articles talk of this...

868
Lenses / Focus and recompose related question
« on: May 26, 2013, 06:51:18 AM »
I have been doing focus and recompose since I started to photograph! I mean with my old Lubitel what choice did I have? Same with AE1 and the 300D. Now I always thought that the focus is done along the radius. Is my understanding incorrect? Is it done on a plane perpendicular to the ray of light going through the center of curvature of the lens? I have seen a couple of articles on this but there is no real explanation there. They just say that the focus goes off a bit. Very early on, I would shoot at f8 or f11 or even f16 so I guess I never had an issue with DOF...

If you could point me to some articles that would help.

Thanks in advance.

Rustom

869
Animal Kingdom / Re: Show your Bird Portraits
« on: May 26, 2013, 06:25:39 AM »

Good lord! Gravity seems to be malfunctioning at that spot. ;)

Lovely picture :)

LOL ;D

Maybe there is a little bird trampoline hidden just behind the rail. Really cool shot!

>:( I make this Nobel prize worthy discovery and you dismiss it of as a trick?

:P

Sorry rpt...I didn't realize the gravity of the situation 8)
LOL! You made my day!

870
Lenses / Re: 24-105L Curved horizon.
« on: May 25, 2013, 11:43:34 PM »
After a little (ok, a lot  :o) of head scratching and figuring out I changed it to this. Which is much better than it was. I used the PTlens plugin for Aperture. FYI.

I feel like this should be easier to do? Lol So maybe I need a better workflow. But I have to admit I hate this part of this photography thing. I sort of want the images to just look great on the computer right from the SD card...
In LR it is one check box that needs to be checked...

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