Yes, ISO is exactly like film speed. Yes dslr`s dont have film but they do have an image sensor, ISO sets how sensitive your sensor is to light. To get the correct exposure there is 3 things you need to look at, and they are basically in balance, so what you need to do is find the correct balance of these three, apreture, shutter speed and ISO. Apreture - aka f stop, this is how wide your lens opens, the lower the fstop number the wider the blades in the lens is open, this allows in more light. The higher the fstop number the smaller the blades of the lens close to let in less light. Apreture also influences the photo`s depth of field, depth of field is basically how much of the photo is in focus. If you use a small fstop (blades of the lens are wider open) less of the photo will be in focus and the higher the fstop more of the photo will be in focus, Depth of field (DOF) also depends on how far you are from your subject and focal lenght used. Depth of field explained <-- click here here is an image that shows it nicely For fish tank pics a wide open apreture is usually need because of the low light, but this can make it difficult to get fast moving fish in sharp focus because the DOF is very shallow. ISO - This is how sensitive your camera`s sensor is to the light that comes through the lens. But using a high ISO results in a noisy or grainy image example Shutter Speed - You can see this as a door that open and closes for split seconds to allow a certain amount of light through to the sensor. Higher shutter speeds are used to "freeze action". This is what we want when taking pics of fish tanks because of the fast moving fish. example, slower shutter speed on the left and faster shutter speed on the right. So for fishy pics, because of low light, we want to use the highest possible ISO (without making it to noisy, newer cameras have better noise performance than older models) the fastest possible shutter speed, and an apreture of about f6 to f8 to get more of the photo in focus, which makes it easier to get a sharp image of fish.
I went through several menu's on the camera and I didn't find one that controls the ISO, so I guess that is out, but I did increase my white balance to +0.3 and that seems to have helped a bit. The reason for everything in my tank looking warm/orange is the fact that I'm using a Grow Lux light and it gives off that pinkish tinge. The other reason could be because of the tannins in the water from my large focal tree stump. It looks like I'm definitely going to have to save up to buy the new Nikon Coolpix with 16MP, I won't be able to afford a more expensive camera just yet. (Unless I win the Lotto or Powerball)
get a second hand slr skye01, www.outdoorphoto.co.za, look in their classifieds section, if you have patience you can pick up a bargain.
Thanks, I will go check it out, then at least I know how much I have to save to get a REAL camera....
As camera flashes is most of the time the quilty thing making the light to bright or to dark I am going to start posting things that can soften the light and to prevent that hard shadows. This will be for DSLR cameras and for point and shoot cameras.
After a long time not on this site, I am back. How is everybody coming along with photographing their fish?
Still practising and fooling around. I cant post my Planted Jebo yet, not good enough. And Im waiting for my malawi's.... Will post them in March.
HI.. I didnt read all the comments,but i just wanted to know,if i wanted to buy a nice camera,which will take nice pictures of guppies,which should i check out and how much will i spend? i bought the nokia n8 for the 12mp camera,omw all the fish blur and i changed settings to sport,still blur and i cannot adjust shutter speed,has no such setting.. So any cameras in mind?
Any cell phone camera is useless when it comes to photograph fish. If you put the cell camera to high speed it will change the settings to balance the light meter. The biggest problem is the delay on cell phone cameras. They are just to slow to auto focus, balance the light and take the photo. my cell take a second and a half to take one photo, my camera do on best quality(raw) 7 photos a second and 12 photos a second on best quality (jpeg) To photograph. Fish you need a camera where you must be able to change ISO, White balance, macro, portrait and the other not to important preset crap settings. A decent point and shoot will cost between R3000 and R6000. The cheap cameras is no use. I will check around what is available on the market for not to bad a price.
Another bad thing about cell phone cameras and most point and shoot cameras is the focus point. With these the camera focus on the point where you focus on and when you push the button it is going to try and get everything in focus. The problem with this is that if there is any bright or shiny points within the photo, the camera focus on that point , then try to get everything in focus and you end up with a crap photo.
That ecxactly like you said,if you see any camera,with a nice price,let me know,dont want to buy a crappy one,but some of them is so expensive
@Stalker Hi, any progress? I can get a Sony SLT A33Y ( 14.2 MP, SAL1855 & SAL55200, Translucent Mirror Technology, 7fps-speed, Sweep Panorama, 3D, AVCHD, Eye-Fi Ready, ISO12800) for R8000 and the option of SONY SAL75300 - 75-300mm F4.5-5.6, for R2300. (Not really an option, as it gets too expensive) This is helluva expensive to me and I do not know the first thing about photography, but I will go to class with my wife to learn and get value, if this is a good buy? I looked at YouTube reviews and people does not seem too impressed with it. Is it a case of jealousy makes you nasty?
When buying an slr it is better to stick with canon or nikon this seems good --> http://www.outdoorphoto.co.za/class...title=nikon-d90-hardly-used-2c-like-new&cat=3 browse through the other listings http://www.outdoorphoto.co.za/classifieds/showcat.php?cat=3
Well when you look at pro grade camers all of them are slr`s, no mirrorless or semi translucent mirror cameras, anyway, you seem to have made up your mind so go for it... by the way the Sony SLT A33Y was released in 2010 so wouldnt call it the newest technology out there.
Stalker shoots nikon aswell, for R11k i will much rather have this 60D with 18-55 lens ---> http://www.sacamera.co.za/product/1017459/Canon_EOS_60D_with_1855mm_IS_Lens_Kit/ or this for R6500 --> http://www.sacamera.co.za/product/1...IS_lens,_Sandisk_8GB_Extreme_card_,_SLR_Bag)/ or this for R10K --> http://www.sacamera.co.za/product/1...e_card,_Kata_Backpack_2012_Student_Promotion/ http://snapsort.com/compare/Canon_EOS_550D-vs-Sony_SLT-A33 http://snapsort.com/compare/Canon-600d-vs-Sony_SLT-A33 http://snapsort.com/compare/Canon_EOS_60D-vs-Sony_SLT-A33 http://snapsort.com/compare/Nikon-D5100-vs-Sony_SLT-A33 http://snapsort.com/compare/Nikon_D3100-vs-Sony_SLT-A33
