Comments on: Hursley fireworks http://adrianspender.com/blog/2006/11/05/hursley-fireworks/ Cycling, software and random other thoughts Sat, 05 May 2012 04:52:48 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: David Currie » Blog Archive » Hursley fireworks http://adrianspender.com/blog/2006/11/05/hursley-fireworks/comment-page-1/#comment-94 David Currie » Blog Archive » Hursley fireworks Tue, 07 Nov 2006 13:38:12 +0000 http://www.adrianspender.com/blog/?p=74#comment-94 [...] Friday night was fireworks night at IBM Hursley. There was a good mix of new fireworks and old favourites and some nice long combinations. Having watched most of last year’s display through a viewfinder I was banned from taking a camera but Adrian has some good shots. [...] [...] Friday night was fireworks night at IBM Hursley. There was a good mix of new fireworks and old favourites and some nice long combinations. Having watched most of last year’s display through a viewfinder I was banned from taking a camera but Adrian has some good shots. [...]

]]> By: martyc http://adrianspender.com/blog/2006/11/05/hursley-fireworks/comment-page-1/#comment-96 martyc Mon, 06 Nov 2006 10:44:32 +0000 http://www.adrianspender.com/blog/?p=74#comment-96 I have the official canon remote for my 20D, which I got in the small camera shop in Winchester on Jewry St (?) for 40 quid. It always feels pretty solid, and I have now used it thousands of times without an issue. If you're doing any kind of long or multiple exposure the release is going to save you a lot of effort in post. At the time I thought 40 quid was a rip-off but having used it so much I'd say it's getting better value by the day. I have the official canon remote for my 20D, which I got in the small camera shop in Winchester on Jewry St (?) for 40 quid. It always feels pretty solid, and I have now used it thousands of times without an issue. If you’re doing any kind of long or multiple exposure the release is going to save you a lot of effort in post.
At the time I thought 40 quid was a rip-off but having used it so much I’d say it’s getting better value by the day.

]]> By: Andy Piper http://adrianspender.com/blog/2006/11/05/hursley-fireworks/comment-page-1/#comment-95 Andy Piper Mon, 06 Nov 2006 10:19:17 +0000 http://www.adrianspender.com/blog/?p=74#comment-95 I had a glance over your Flickr shots, and some of the others, and they look good. I was at a different display on Friday or I would have joined in the fun. You did well. Incidentally I bought the official remote release from Warehouse Express and it works well (although I have only used it a few times, if I'm honest!). I had a glance over your Flickr shots, and some of the others, and they look good. I was at a different display on Friday or I would have joined in the fun. You did well.

Incidentally I bought the official remote release from Warehouse Express and it works well (although I have only used it a few times, if I’m honest!).

]]> By: martyc http://adrianspender.com/blog/2006/11/05/hursley-fireworks/comment-page-1/#comment-97 martyc Sun, 05 Nov 2006 23:44:10 +0000 http://www.adrianspender.com/blog/?p=74#comment-97 <i>"The method being to take a long exposure on bulb, covering the lens (without touching) between fireworks. "</i> Nice, I actually hadn't thought of that, despite using it all the time when I used to take astro shots. There are two drawbacks doing this with digital though - noise and battery life. Noise is pretty much linear with exposure time, so the longer the exposure, the more noise, even if you're just shooting a black piece of card. You could use the built in dark field subtraction but that means you can't shoot again for as long as the previous exposure. Once you get a good set of tools for post processing so you can do image arithmetic you can get around the noise issue. The noise is mostly random, so combining multiple shorter exposures averages it out somewhat and you get much smoother blacks. “The method being to take a long exposure on bulb, covering the lens (without touching) between fireworks. “

Nice, I actually hadn’t thought of that, despite using it all the time when I used to take astro shots. There are two drawbacks doing this with digital though – noise and battery life.
Noise is pretty much linear with exposure time, so the longer the exposure, the more noise, even if you’re just shooting a black piece of card. You could use the built in dark field subtraction but that means you can’t shoot again for as long as the previous exposure.
Once you get a good set of tools for post processing so you can do image arithmetic you can get around the noise issue. The noise is mostly random, so combining multiple shorter exposures averages it out somewhat and you get much smoother blacks.

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