Can a (DSLR) flash cause permanent eye damage?

Well, i'd say after more than 2 years it can be considered quite permanent (even if minor).
But once again, it was handheld, so regular use with camera body regulating it and not held so closely and not focusing on it in the night should be fine...
Mt Spokane Photography said:
Jules said:
Answer is plain and easy : yes, it can ! And I know the effects firsthand :-(

Some would say it looks like one of these Wile.E Coyote cartoon ... but recipe is easy... wanting to experiment with Photography can be tempting....
Take somebody who is a bit light sensitive (years in Texas with probably poor grade sunglasses didn't help), have fun at night with photo friends for a "lighpainting session" (ie. taking picts with lights effects at night), and fire a 430EX external flash at your face from 30-40cm below, and don't close your eyes ....
=> result is really cool "ghost like picture" like in the books (ie. your camera set on long exposure takes picts with 3 times your face for example if you move and redo it, just the face that was under flash exposure, rest of the body is invisible and you see the background thru ...), but better if you close your eyes and/or look up instead of looking in front or worst, low at your flash (like the first tries to see where to position it best, etc ...)
=> side effect after multiple attempts in the evening is darker spot in your eyes, showing "paler" zones when looking at lights (and having focus shift left/right) as if you had a water spot on the eye diffracting light a bit, and showing "greyer" areas when looking at uniform white wall (or blue sky) with high luminosity ...

Seeing dark spots after being exposed to a bright light is common, but its not permanent damage to your eyes.
Upvote 0

5D markIII Live View noise

I guys

I got a new 5D mark3 and yesterday i realize the same problem, a lot of noise in the live view when is dark.
The problem is that its happening in really high ISO setting H1 anf H2 and even in low range 200-400-800
I got a friend that have the same problem.

I realize that if you dont expand the the ISO Range to L-H1 and H2 the problem is much less

I was not able to facus in manual with the live view in x5 and x10 becouse to much noise

is it a limitation of the body or actually a problem that probably Canon dont know yet?


I gona take picture and send it to Canon and in as many bloog i can

Let see what's happen

Cheers

Keep in touch
Upvote 0

Fast AF Canon compact for under £100

M's af is pretty decent if:

You use oneshot rather than servo
Use single flexi zone rather than auto flexizone
Switch off continual af
Switch off touch af+shutter (use bin button to centre af spot)
Are happy to confrim af and recompose

And in this mide it is set to get even faster with the new firmware.

It's not a compact, it wasn't £100 and nor is it an SLR.
Enjoy it for what it is. The IQ is brilliant, especially with the 22mm!

Enjoy and welcome to the m club.
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Seeking Recommendations regarding camera upgrade

Sebring5 said:
Zv said:
Sebring5 said:
6d although I recommend primes instead of zooms.

I disagree, limiting yourself like that can be creative but sometimes a job calls for the flexibilty of a zoom. Now, I reckon just one or two zooms will do it and then build up your primes. A 24-105L is prob all you'll need. Then decide what focal lengths you are drawn to. Don't get a 35mm just because it's cool to have one. You'll have to analyse your shooting and framing styles over a long period of time. And it's ongoing. You may find that this year you are more of a tele kind of guy.
I have a 400mm f5.6, 135mm f2, 50mm f1.8 and 17mm t/s f4. I rarely use the 50mm. Maybe later on I'll get a 600mm or 800mm. I'm definitely either medium to long telephoto or ultra wide angle. Later on I may end up in shooting differently.

Sorry that post was not aimed at you but rather the OP!
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5D Mk III Vs. 7D Vs. T4i VIDEO ONLY

BokChoiTV said:
The T5i's cost is way too much for so little difference over the T4i

But it's a really nice embossed dial.

BokChoiTV said:
Hopefully the T4i will be friendly too, haven't used a Rebel in years.

It'll feel small and flimsy at first, but you'll get used to it. ...there's a joke in there somewhere...
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Canon SE-E3-RT and Sekonic L-478DR together?

Canon only plays nice with Canon RT. I called Sekonic and asked if they were planning to build a Canon friendly RT module and they said no. They are in bed with PW. That was 4 months ago and you never know.

When in manual I carry my STE3 and L-358 with me. Flashes in group mode and I use the test button on the STE3 to fire the flashes. I set them all at each location using this method. When done I put the STE3 back on my camera.

I modified the foot stand and attached a spare BR connector.

_S7A9539.jpg
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Leaf Shutter Lenses For Canon Dslr

bvukich said:
RLPhoto said:
privatebydesign said:
some posters stated belief that gear is just a matter of convenience and any shot could be shot with any gear given time and thought!

U mad bro? Don't be hurt because other's here also called you out on the convenient applications of a leaf shutter.

As privatebydesign correctly pointed out, there are applications that would be served by having a leaf shutter, but none that wouldn't be BETTER served by having an electronic shutter. You get all the benefits (but instead of only 1-2 stops gain, you're bound only by flash duration), without all the caveats of a leaf shutter.

Indeed, That's why I use my g15 for its sync speed but leaf shutters are a decent compromise. Afterall, It's about two stops of ambient cutting power.
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What does Vincent Laforet Think is a Game Changer?

npeters said:
From reading his blog, my guess is that it will be an IS version of his favourite 24-70mm f2.8 lens. Here in Australia the lens RRP is $2,400, more than the old 5D2 body used to sell for.
Couple months too late. It was a video stabilization system that uses accelerometers and ultrasonic motor for a lightweight and silent solution.

http://www.freeflysystems.com/products/moviM10.php
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Looking as tall as the Eiffel Tower - best ways to take this pic

privatebydesign said:
Northstar said:
If I understand correctly, you want both the Eiffel Tower AND your subject in focus? To do this, you need to do some things to widen your dof to infinity.

There are four main factors that contribute to dof: (I know many here know this but their are many that don't, so bear with me)

1. The aperture....shoot at f11 rather than f5.6 or f4...this will help widen your dof.

2. Distance to your subject ... The closer you are to the subject, the narrower the dof. Move further away and your dof will widen.

3. The focal length of your lens...an 85mm lens will have a narrower dof than a 24mm. So as someone else said, shoot wide to increase your dof. 24mm or wider in this case.

4. Your sensor size...a full frame sensor will give you a narrower dof compared to a crop sensor.

So for the tower shot, shoot at f11 and use a 24mm lens...this your starting point. Then, just understand that the closer you get to the subject, the narrower your dof will become, and the more likely the tower will be out of focus. The problem, is that to get the "Godzilla" effect as you describe, you need to be close to the subject, so that they appear to be as big or bigger than the tower..... This is why you need to shoot at 24mm or wider

Omar...as someone else posted, spend 5 minutes playing around with the settings on the following website and you'll learn a lot about the 4 factors that control dof....important stuff.

http://www.dofmaster.com/dofjs.html

Point 3 is arguable, if you maintain subject size dof remains constant between focal lengths.

Point 4 reads incorrectly. A smaller sensor gives more dof. These kinds of forced perspective images are very easy with camera phones and P&S's because they have such small sensors and subsequent massive dof.

Look up forced perspective and use a small sensor at f5.6 or f8, P&S's often max out at f8 anyway.


Pbd..you are correct on point 4, I wrote it wrong...I've edited it now.
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Newspaper Dumps Photographers, Wants Video

Paul, you raise a very good question here and I don't think this is beyond your pay grade at all. I also wonder about how information will be spread after newspapers as we know them have become more or less extinct.

On the positive side this trend might remove a lot of political agitation and propaganda, but what happens once we have only unchanneled information? In case of democracy taking away layers of obfuscation and manipulation is quite a good thing, as seen in the Swiss example. If you compare YouTube to old-fashioned TV, there is also a noticeable freedom of unwanted advertising, but then there are user comments out there on YouTube, which you wouldn't want to read at all, especially in case of religious themes. In such cases the quality of information actually becomes dependent on corporate censoring, which in such cases is a good thing.

The same trend may be happening to news and media in general, but we must all beware of companies misusing available streams of communication for viral marketing and how our precious information suddenly becomes dependent on very few corporate information sources such as Google.
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What will be your next lens - and can you post a photo to explain why?

Deva said:
JonAustin said:
Deva said:
Oddly, although I do have the 8-15mm, I still would like to get a 14mm - because whilst the fisheye is wonderful, the "fisheye" effect needs to be used with care, with only vertical and horizontal lines passing through the centre of the lens remaining straight. Hence I can do landscapes, but to keep the horizontal level, it has to be in the middle of the frame.

As an example, in the shot below, I was slightly off, and so I got a curved horizon.
Deva: I get your point, but in your sample photo, I actually like the curved horizon.

I think sometimes it works better than others - I agree with you that in this case, I quite like it myself, possibly because it picks up on the curves of the flowers, and is slightly masked by the curve of the bay (so the far distant horizon isn't smiling/frowning). The fisheye demands careful composition to get it to work well - but when it does, it gives a very different perspective which I very much enjoy using.

Actually I don't think it is a negative feature that you have to frame carefully with a fish-eye lens, as I do like to spend some time thinking about framing before I shoot anyway.

Thanks for all the positive comments regarding Deva's fish-eye sample picture and of course thanks to Deva, because these comments actually support my view that this lens provides some very nice creative options.
Upvote 0

5D Mark III phenomenon

Harv said:
I generally pull all my cards out after a shoot to upload to the computer and replace them when that is done. As such, I usually close the card door. I'll have to get in the habit of leaving it open until I replace the card.
How about removing the battery first? You still need to charge the battery between shoots so why not remove it first and place it back after you replace the CF card.
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