Some advice if you will chaps please....
Some advice if you will chaps please....
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Discussion

Turn7

Original Poster:

25,676 posts

250 months

Friday 7th March 2014
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Ive been togging for a good few years now, and have an understanding of the "triangle" in relation to the criteria of exposure.

I have found of late that my images have been way below my expectations and Im not entirely sure why.

My kit is basically D200, 18/70 3.5 AFS with the option of a 1.8 nifty and flash if required.

I have found of late, that I need to push the ISO higher and higher to get the image crispness/exposure that Im after and the D200 is poor in this respect.

I know Im not the most stable of camera platforms, so tend to go for a higher shutter than maybe required, which then leads to higer ISO,in turn, this leads to crappy,grainy pics.

Of late, I have mostly been snapping aquarium fish (tricky at best),my Crested Gecko and other indoor shots.

For example, today, I went to Crufts. The indoor lighting is awfull, so I shot Raw to give me a chance. But even then, the shots were beyond basic PP. (Elements 8 user)

All of which end up with me pushing the ISO to the point of nastiness.

So, what needs to change ?

My approach ?
Glass ?
Or body ?

Simpo Two

92,680 posts

294 months

Friday 7th March 2014
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Examples would be handy. You talk of high ISOs and fast shutter speeds - but what of the aperture? What mode are you shooting in? My first instinct in low light is slam the aperture as wide as possible concomitant with required DOF.

I'll take my D200 to ISO800 but try to avoid higher.


Turn7

Original Poster:

25,676 posts

250 months

Friday 7th March 2014
quotequote all
Simpo, I try to use as high an aperture as poss, but generally I cant get enough light in to balance the equation.

A lot of my shots tend to be snatched, as fish dont sit still very long, or Im in trying for a candid type shot, which Im sure you're familiar with.

Simpo Two

92,680 posts

294 months

Friday 7th March 2014
quotequote all
If you are on the maximum aperture - your f1.8 for example - and you can't take the ISO any higher for noise, and you can't get a fast enough shutter speed, then you've hit the limit and need a flashgun - or a much newer camera that can handle high ISO.


GetCarter

31,226 posts

308 months

Saturday 8th March 2014
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/\Indeed.

If you ever go full frame, life will be a lot easier as ISO can go MUCH higher without noise.

chris.mapey

4,778 posts

296 months

Saturday 8th March 2014
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Turn7 said:
I know Im not the most stable of camera platforms, so tend to go for a higher shutter than maybe required, which then leads to higer ISO,in turn, this leads to crappy,grainy pics.
Don't mean to teach you to suck eggs, but have you thought about a tripod / monopod before you go and buy new glass / better body etc...

Stabilise the camera and you can bring ISO back int the range that they camera can generate good images as as you can slow the shutter speed down by a stop or two...

Just a thought before you spend hundreds, it might be worth a try...

rottie102

4,033 posts

213 months

Saturday 8th March 2014
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chris.mapey said:
Don't mean to teach you to suck eggs, but have you thought about a tripod / monopod before you go and buy new glass / better body etc...

Stabilise the camera and you can bring ISO back int the range that they camera can generate good images as as you can slow the shutter speed down by a stop or two...

Just a thought before you spend hundreds, it might be worth a try...
Good luck with that with shooting dogs and fish smile

K12beano

20,854 posts

304 months

Saturday 8th March 2014
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rottie102 said:
Good luck with that with shooting dogs and fish smile
Dogs aren't such a problem, but it's very difficult to find tripods that you can put fish on - fresh or salt water? Something rust resistant would be good ...

silly

Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
Chris, I do use a tripod when I can, but its not possible for fish and other shots. As I said, a lot of my stuff is snatched pics of animals doing things, so you need to be able to react quickly and queitly.

Couple of examples from yesterday....


DSC_7403 by mark_p99, on Flickr


DSC_7401 by mark_p99, on Flickr

DibblyDobbler

11,488 posts

226 months

Saturday 8th March 2014
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Is f4.2 the widest you can go? It's asking a lot to shoot moving things in poor light with such a slow lens.

I don't think you're doing anything inherently wrong, just need a faster lens and/or a body which will give higher usable iso smile

Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
DibblyDobbler said:
Is f4.2 the widest you can go? It's asking a lot to shoot moving things in poor light with such a slow lens.

I don't think you're doing anything inherently wrong, just need a faster lens and/or a body which will give higher usable iso smile
No, the lens will go to 3.5, but this was slightly zoomed due to crowds.


GetCarter

31,226 posts

308 months

Saturday 8th March 2014
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Turn7 said:
No, the lens will go to 3.5, but this was slightly zoomed due to crowds.
You might buy and try a cheap(ish) 50mm 1.8 prime before you spend a load on a ff sensor which will address and sort your issues.

Did a wedding with no tripod or flash, but set camera to between 1600 and 5000 ISO.... (I'm crap at weddings before you all shout). This is a crop from a much larger shot... no noise, pin sharp. Clever ff sensor.


Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
GetCarter said:
You might buy and try a cheap(ish) 50mm 1.8 prime before you spend a load on a ff sensor which will address and sort your issues.

Did a wedding with no tripod or flash, but set camera to between 1600 and 5000 ISO.... (I'm crap at weddings before you all shout). This is a crop from a much larger shot... no noise, pin sharp. Clever ff sensor.

Ive got a Nifty Steve, and nearly put it on, but I thought the versatility of the 18/70 3.5 would be more suited.

Ive been hankering a new body for while, and this has got me looking at D4's that I cant afford.... hehe

GetCarter

31,226 posts

308 months

Saturday 8th March 2014
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Lots of D3's out there second hand, or D800's which are just fab for landscapes (but a bit rubbish for dog shows).

Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
Out of interest, why does FF cope better with high ISO ?

GetCarter

31,226 posts

308 months

Saturday 8th March 2014
quotequote all
I don't do tech... but it's a size thing. FF is SO much bigger than crop the pixies that live there can do so much more.

Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
Lol, good answer.

Simpo Two

92,680 posts

294 months

Saturday 8th March 2014
quotequote all
1) Something is horribly wrong with your exposure; they look about 4-5 stops underexposed. What exposure mode are you using? (as I asked before) - Manual, Aperture, Shutter or Program?

2) The 18-70mm lens, like most zoom lenses, is slower at the long end, so f4.5 seems about right.

My hunch is you're using manual exposure and forgetting that the camera is dumb. Put it on Aperture Priority exposure, open the lens as wide as possible (f3.5-4.5), set the ISO to 1,000 and see what happens. Also try the 50mm f1.8 and see any changes - it should give you the same exposure but a faster shutter speed.


NB: Theoretically FF is better at high ISO because bigger pixels catch more light - but other variables come in to play.

Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
Exposure0.008 sec (1/125)
Aperturef/4.2
Focal Length40 mm
Focal Length40.0 mm
ISO Speed800
Exposure Bias0 EV

Shutter mode

Edited by Turn7 on Saturday 8th March 21:46

Turn7

Original Poster:

25,676 posts

250 months

Saturday 8th March 2014
quotequote all
I count on you as a D200 expert Simpo, as I know thats what you use. If I had to shoot weddings using mine, I think I would crap myself, knowing its poor low light capability....