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Messages - GuyF

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151
Lighting / Re: Can a (DSLR) flash cause permanent eye damage?
« on: June 07, 2013, 01:38:37 PM »
I recently saw a programme about Nobel prize winning physicist Richard Feynman who worked on the Manhattan project to build the first nuclear bomb. He said, "They gave out dark glasses that you could watch it with. Dark glasses! Twenty miles away, you couldn’t see a damn thing through dark glasses. So I figured the only thing that could really hurt your eyes (bright light can never hurt your eyes) is ultraviolet light. I got behind a truck windshield, because the ultraviolet can’t go through glass, so that would be safe, and so I could see the damn thing.

Time comes, and this tremendous flash out there is so bright that I duck, and I see this purple splotch on the floor of the truck. I said, “That’s not it. That’s an after-image.” So I look back up, and I see this white light changing into yellow and then into orange. Clouds form and disappear again – from the compression and expansion of the shock wave.

Finally, a big ball of orange, the center that was so bright, becomes a ball of orange that starts to rise and billow a little bit and get a little black around the edges, and then you see it’s a big ball of smoke with flashes on the inside, with the heat of the fire going outwards.

All this took about one minute. It was a series from bright to dark, and I had seen it. I am about the only guy who actually looked at the damn thing – the first Trinity test. Everybody else had dark glasses, and the people at six miles couldn’t see it because they were all told to lie on the floor. I’m probably the only guy who saw it with the human eye."

So there you go, as long as there's a sheet of glass between you and the light, you might be fine 8)

152
5D MK III Sample Images / Re: 5D MK III Images
« on: June 04, 2013, 01:35:43 PM »
Oscar - that first shot is just screaming out to be converted to black and white! Great images.

153
Canon General / Re: Seabird colony - change lens or not?
« on: June 03, 2013, 02:39:44 PM »
I was filming with the Scottish Seabird Centre last week, in North Dunbar though, not Isle of May.  I went with the Isle of May ferry, a rib would be much more fun!

Oh you name dropper! First it was filming Rod Stewart now it's the Seabird Centre. Will I have seen any of your stuff on telly?

154
Seems interesting. Also take a look at this from Canon - replace your flash with incense sticks!

http://www.canon.com/news/2013/mar04e.html

155
Canon General / Re: Seabird colony - change lens or not?
« on: June 02, 2013, 06:06:14 AM »
Paul - thanks again for the info. From what you say, I should take my crash helmet and keep the visor down at all times.

I'm booked up for the end of June so hopefully the sun might shine and the water will be just above freezing. The trip is by the Scottish Seabird Centre and they supply waterproofs for when you're on their RIB. I don't want any crap on my Billingham so it'll be the Tamrac that gets the abuse. Of course the sensible thing would be just to take my camera and sandwiches in a poly-bag from the supermarket and keep it on my lap during the journey. Light, cheap and disposable!

Sounds like the 70-200 is the way to go.

Glad to hear staff were on hand to take care of your eye.

156
Animal Kingdom / Re: Show your Bird Portraits
« on: June 02, 2013, 05:44:42 AM »
Since this thread started off as bird portraits, here's a family portrait.

Duck shots added too for the heck of it.

5D3 and 300mm 2.8 IS

The lighting in the "family portrait" is exquisite.  Very intimate

Thanks for the comment. I have to thank nature for the lighting, I just stood there and pressed a button!

The original image was a crop of the image below as I thought it maybe worked better.

Regards.


157
Canon General / Re: Seabird colony - change lens or not?
« on: June 01, 2013, 08:42:19 AM »
Thanks Fussy, I'll keep that in mind and certainly won't go chasing the wildlife (too much like exercise!)

158
Animal Kingdom / Re: Show your Bird Portraits
« on: June 01, 2013, 06:21:53 AM »
Serendipidy - thanks, maybe I'm not practised enough but I find birds in flight are so hard to do well. I wonder how many keepers the real professional guys get from a trip. No doubt they have a way higher hit rate but it would be nice to know they miss shots too!

159
Camera Body Gallery / Re: Birds, Birds...with EOS 1Dx and 5D III
« on: June 01, 2013, 06:00:31 AM »
Excellent shots Frederic!

160
Animal Kingdom / Re: Show your Bird Portraits
« on: June 01, 2013, 05:55:28 AM »
Since this thread started off as bird portraits, here's a family portrait.

Duck shots added too for the heck of it.

5D3 and 300mm 2.8 IS

161
Canon General / Re: Seabird colony - change lens or not?
« on: June 01, 2013, 05:45:50 AM »
Thanks to all replies for the advice.

Paul - actually it is the Isle of May I intend going to. You reckon the 70-200mm is adequate? Do you think the 17-40 would be of any use? A monopod might just be one more thing to faff about with.

The folk doing these tours supply waterproofs and I was going to take a hat anyway.

Must remember never to look up with my mouth open.


162
Canon General / Seabird colony - change lens or not?
« on: May 31, 2013, 03:18:32 PM »
Wasn't sure if this was the best place to post this query but I'm sure we'll cope!

I intend going on a seabird safari in the next few weeks and wondered what the consensus was on changing lens in a "salty air" environment. I suspect the few seconds it takes to change a lens (done within the confines of my camera bag) wouldn't be much of an issue but wondered what experiences you've all had in similar situations. The island is rocky/grassy so I don't expect sand blowing everywhere but wanted to know how sensitive contacts could be to brief exposure to salt air.

I intend taking my 300mm 2.8 IS, 70-200 f4 IS and maybe 17-40mm for seascape type shots if I get the chance (body is a 5D3). I'll get a waterproof jacket for the body/lens combo just in case the weather is poor but mainly in case of bird poop landing on it  :o

Depending on the weather I won't change the lens at all but want to go prepared - the one bit of gear you need is always the thing you left at home.

Any advice gratefully received.

163
Animal Kingdom / Re: Show your Bird Portraits
« on: May 29, 2013, 11:58:23 AM »
Not exotic but we can't all have humming birds and flamingos on our doorstep!

5D3 and 300mm f2.8 IS mk1 - f5 1/1000th ISO640 +2/3rds

Pigeon with anti-gravity belt! I like it!

Yup, seems like the birds are onto something - must've borrowed it from him:



164
Animal Kingdom / Re: Show your Bird Portraits
« on: May 28, 2013, 08:27:31 AM »
Not exotic but we can't all have humming birds and flamingos on our doorstep!

5D3 and 300mm f2.8 IS mk1 - f5 1/1000th ISO640 +2/3rds

165
5D MK III Sample Images / Re: 5D MK III Images
« on: May 26, 2013, 02:00:34 PM »
Some shots from this weekend:

The Elven king and his unicorn didn't want their pics taken in the enchanted forest - I argued they were in a public place but they were having none of it. For the record, he speaks like the Hooded Claw from Penelope Pitstop cartoons. (17-40mm)

Duck on final approach was 300mm f2.8 IS mk1 and Kenko 2x converter. Not overly happy with that combo - images seem to be a bit too soft but what should I expect with a cheap converter? Ideal solution would be to buy the 600mm mk2 but then I'd always be thinking of the versatility of the new 200-400. Of course I could go the cheaper route of Canon's own 2x converter...or walk/swim closer to the subject. Tough decision.

The clichéd impressionistic seascapes were a first attempt at panning during a 6sec exposure. Should've used a reverse ND filter to tame the horizon but there's never one in your bag when you need it. Not to everyone's taste but a bit different. (17-40mm)

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