Lower Peirce 14/02/2009

[TroyP]

I took so many shots but without much success.
Spent quite a lot of time trying to control the flash.
Any help would be much appreciated!

I only edited 2 shots, since the subject were a little more unique, and they were extensively edited in photoshop

Nikon D90 + Tamron 90mm + onboard flash + milk bottle difuser.
(not sure if I used any tubes on these).

F18, 1/200 sec, ISO 200, Manual mode, Spot metering


F18, 1/200 sec, ISO 200, Manual mode, Spot metering

[ex0rzist]

What is this insect ?? Some kind of tree hopper ? Its details are amazing. Like some kind of fibre sprouts.

[TroyP]

Originally Posted by ex0rzist What is this insect ?? Some kind of tree hopper ? Its details are amazing. Like some kind of fibre sprouts.

I think they might both be some kind of tree hopper. The white one wouldn't sit still for me. It constantly walked up the railing, and eventually hopped off somewhere (after 15 mins of me trying to capture it).

The brown one was just camping on a branch, and yet I couldnt get a good shot of it (maybe I was too tired after 4hrs of shooting).

They are both probably only around 2mm big.

[loboclerk]

#1 is a very nice capture. Enjoying your 90mm?

Think I saw a couple of these today, but they were too tiny and I didn't try much as I couldn't go beyond 1:1.

[TroyP]

Originally Posted by loboclerk #1 is a very nice capture. Enjoying your 90mm? Think I saw a couple of these today, but they were too tiny and I didn't try much as I couldn't go beyond 1:1.

I was, but i'm getting frustrated with it lately.
Night macro, i'm having troubles controlling the flash level (flooding).
And i'm having troubles getting really tiny insects in full focus. Don't know what i'm doing wrong

[teebs]

Originally Posted by TroyP I was, but i'm getting frustrated with it lately. Night macro, i'm having troubles controlling the flash level (flooding). And i'm having troubles getting really tiny insects in full focus. Don't know what i'm doing wrong

Controlling of light is very difficult especially in low light conditions. Your diffuser will have to do most of the job in spreading the light out evenly. Have you tried using your pop up flash with a piece of thin styrofoam paper over it?

As for tiny insects, depends on how small it is. Smaller than 5mm, I won't even bother using my tamron 90 to focus on it. Also DOF depends very greatly on your ISO and aperture.

[loboclerk]

Bro it just takes practice. For lighting, u can experiment abit, vary everything u can control to see the effect and see what works best for u.

Originally Posted by teebs Also DOF depends very greatly on your ISO and aperture.

errr.. DOF depends on ISO meh? How so?

[teebs]

Originally Posted by loboclerk Bro it just takes practice. For lighting, u can experiment abit, vary everything u can control to see the effect and see what works best for u. errr.. DOF depends on ISO meh? How so?

Principle of light my friend. ISO, Apreture and Shutter speed are all interlinked.

Smaller Aperture (e.g. f/11) with low ISO (e.g. ISO 100) to get bigger DOF due to slower shutter speed. Smaller Aperture (e.g. f/11) with very High ISO (e.g. ISO 800) = lesser DOF as shutter speed increases.

[loboclerk]

Originally Posted by teebs Principle of light my friend. ISO, Apreture and Shutter speed are all interlinked. Smaller Aperture (e.g. f/11) with low ISO (e.g. ISO 100) to get bigger DOF due to slower shutter speed. Smaller Aperture (e.g. f/11) with very High ISO (e.g. ISO 800) = lesser DOF as shutter speed increases.

hmmm, with all else constant, I don't think ISO directly affects DOF leh? I suppose you mean that with different ISO, you can have a different aperture size to affect the DOF?

For me, DOF is controlled by focal length, aperture and distance to subject. ISO just helps u achieve what u want with the aperture.

[teebs]

Originally Posted by loboclerk hmmm, with all else constant, I don't think ISO directly affects DOF leh? I suppose you mean that with different ISO, you can have a different aperture size to affect the DOF? For me, DOF is controlled by focal length, aperture and distance to subject. ISO just helps u achieve what u want with the aperture.

Depends on what variable you are talking about. Assuming focal length, distance to subject and ISO are fixed, then shutter speed and aperture will control the DOF. If you control the aperture, you are also controlling the shutter speed. Only in M mode is the shutter and aperture not linked.

In the old film days, ISO is typically fixed at the point you load in your film but in the digital age, you can change the ISO at will. That was the point I was making.

[F_Enzo]

Originally Posted by TroyP I think they might both be some kind of tree hopper. The white one wouldn't sit still for me. It constantly walked up the railing, and eventually hopped off somewhere (after 15 mins of me trying to capture it). The brown one was just camping on a branch, and yet I couldnt get a good shot of it (maybe I was too tired after 4hrs of shooting). They are both probably only around 2mm big.

Interesting bugs & hv not seen it before. Did u cropped the pics as I find the sp90 is not good at magnifying a 2mm insect to this big

[TroyP]

Originally Posted by F_Enzo Interesting bugs & hv not seen it before. Did u cropped the pics as I find the sp90 is not good at magnifying a 2mm insect to this big

I recall these are both 100% crop.