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LauraF
21-04-2008, 15:31
Only my third attempt at insect photography, so I know there's room for a lot of improvement still. Especially pleased with the spider (was 4-5mm big for reference), as previously just the sight of one induced a panic attack. Looks like being behind a lens is helping me cure my phobia, there's too much else to concentrate on!

Constructive criticism welcome. Hope I haven't exceeded any post/image limitations, let me know if I have and I'll adjust as necessary!

http://farm4.static.flickr.com/3080/2431505732_76f1d5f269_o.jpg

http://farm3.static.flickr.com/2184/2430690239_458984c266_o.jpg

http://farm3.static.flickr.com/2372/2430689359_9d3eacbacf_o.jpg

http://farm3.static.flickr.com/2305/2414754920_672551215b_o.jpg

http://farm4.static.flickr.com/3115/2414753224_a06d8309d5_o.jpg

(all hosted by Flickr (http://www.flickr.com))

Duckydoodle
21-04-2008, 15:34
They are absolutely gross...












...creatures...










...but superb captures. Well done :thumbs:

Ajophotog
21-04-2008, 17:06
Not much to criticise about them really, all are pretty decent shots especially for only your third attempt. Hoverflies could be a little closer but that is a minor point. :thumbs:

Canon Bob
21-04-2008, 18:01
Laura,

A very commendable start...especially the house spider. I'm loathe to criticise or offer advice in case you're already aware but here goes anyway.

The last one was taken at f/2.8 and having such a wide aperture will really limit the depth of focus. The first shot is at f/5.6...again a little to large for the DOF needed. The house spider is great and you shot that at f/11...gave the required DOF for the subject. The two quite distant hovers have gained enough DOF from being at a lower magnification (ie, much further away) even though you were only at f/5.
If the subject is 3D and you're working very close then it pays to stop down to f/11 to f/16 providing you have enough light to keep the shutter speed fast enough if hand holding.

Bob

LauraF
21-04-2008, 18:49
The lighting was pretty dire so I had to resort to big apertures to keep the shutter speed fast enough to hand hold - but for the spider (taken near the end) I decided to give my flashgun a go and it allowed me to stop down, and ended up producing fairly natural results compared to what I was expecting. The extra depth of field was a godsend - although I'm wary of firing a whopping great flash at creatures incase it distresses them? I'd fire it away and use a reflector to bounce it onto the subject but I think a huge metallic circle might be just as bad!? The spider didn't seem to mind the flash, fortunately. Any thoughts? Aside from using a tripod and lowering the ss that is. Edit - I'd ideally like to keep the ISO <400 too, or the noise is bad

Thanks for the advice though, it's certainly useful to have a ballpoint f-figure to start from - at the minute I end up taking a shot, checking and stopping down one, take another shot, stop down one etcetc and it means I've probably missed crucial shots inbetween.

Thanks for the feedback guys, much appreciated.

Canon Bob
21-04-2008, 19:19
Laura,

You might find this Macro-DOF calculator useful http://www.robertseber.com/calculators/MacroDOFCalculator.html

Just insert the top three fields as you predict them for your sbject and sensor and you'll get an idea of the DOF to expect. Change the f-stop until you see that there will be enough DOF for your needs and voila.

A quick demonstration....sensor width for your 400D is 22.5mm. Fill the frame with a 22.5mm long wasp (1:1 reproduction). The DOF at f/16 will be 5x the DOF at f/2.8

Bob

Les McLean
21-04-2008, 19:29
These are good, with lovely light, 3&4 are my favourites, and some good advice from Bob

scraggs
21-04-2008, 19:31
I wish I had shots to this standard on my 3rd attempt, lovely shots
Alby & Bobs advise is good advise, the only thing I would add is No3 would be a better shot with the insect head or side on, but as usual thats just my personal opinion.

macmike
21-04-2008, 19:32
Not wanting to lower the tone of this very technical (and highly informative) conversation, but that spider looks positively cute up so close. All furry and stuff!