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Author Topic: Noise reduction capacity  (Read 5070 times)

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« on: October 12, 2007, 12:47 »
I'm going to shoot in a insectarium next week. I just brought a new Sigma 150 f2.8 macro whit a magnification of 1:1, boosted by my D200 1.5x. I already shoot there last year whit my Nikon 18-70 f3.5. My pictures there was most of the time taken at 1600 ISO.It's inside and the lights are not powerful to conserve the color and texture of the butterfly wings and others insects. No flash is allowed.

I tested on the same surface whit the same light these two lenses, to know if there was a difference of luminosity between them ( the 18-70 was at 70mm ).  There was just a small difference who was advantaging the Sigma macro. But not a significant one.

My question is: whit the noise reduction set on and around an hour of post processing, do it's possible to get these files accepted by a site like Istock? Do anybody have files like this who was accepted in the past?

« Reply #1 on: October 12, 2007, 13:18 »
Funny coincidence, I just bought the same lens and I have the Nikon D200. And, last week I did some shooting at the Montreal Insectarium....

There, you can't use a tripod or monopod, I did take about 30 pictures, ISO ranging from 100 to 400, I managed to get 1 picture that is good enough to upload for stock.

I must admit that I did not stay there very long because I did most of my shooting on that day at the Botanical Garden (same area of Montreal), but it's outside and the light was much better.

« Reply #2 on: October 12, 2007, 17:21 »
Forget it - you'll never produce stock quality under those conditions.

« Reply #3 on: October 12, 2007, 18:01 »

- use tripod (if possible)
- reduce iso
- take images in raw
- set sharpness on "none" (later about this)
- saturation, tone compensation and etc "standard"

post procesing:
- develop .NEF (RAW) files with "nikon capture nx"... suggesting this software because adobe and all other raw processing software make big noise and wrong colors with nikon raw files.
- export two TIFF files from CNX. one with sharpnes what you chose and one with zero sharpnes. both images with same editing steps (WB, saturation and other...)
- import those two tif files (one sharpner and other with no shar or noise) in two layers in PS.
- after importing same images with diferent sharpness and noise options in two layers in PS delete areas with noise on images abowe and after that export final .JPG file.

You can try to use noise ninja or neat image for reduce noise but suggesting to use quick mask to select areas with noise or for sharpening.

If you wis I can send working capture nx 1.4 and nise ninja (last ver.)...

write me on e-mail... [email protected]



« Reply #4 on: October 12, 2007, 18:42 »
Funny coincidence, I just bought the same lens and I have the Nikon D200. And, last week I did some shooting at the Montreal Insectarium....

Exactly, very funny because I am going there too. If you say about 400 ISO, then I think I'm probably OK. How many of you stay around Montreal? It seem to be a photographer nursery, it's amazing!


« Reply #5 on: October 12, 2007, 22:55 »
I visited the Montreal Insectarium a couple years ago (pre-microstock days). I was so impressed by the exhibit that I took several shots but never submitted any except for a few that were part of my experimental "freaky creepy negative" series. (never took off btw)

I had the pleasure to share my visit with 4 bus loads of children  :D so hopefully when you go it will be a bit more quiet. If not, I suggest bringing a soft cloth since many of the live insects are encased at kid level and covered in finger prints.

Good Luck!


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