DSLR Owners Unite! (56k? Are you kidding me?)
it means u can stop it down to 1.8 on ur aperture. Which also means it is what is called a "fast lens". What that means if u can open the aperture up wider meaning u can use a faster shutter speed. Therefore making the camera faster.
Also means that I can stop down to f 1.8 for a shallower Depth of Field. Meaning the foreground and background of my subject will be more out of focus. Kinda like a portrait shot where the person is in focus but the background is out of focus. Giving the effect of drawing ur eye to the model better.
Understand?
Also means that I can stop down to f 1.8 for a shallower Depth of Field. Meaning the foreground and background of my subject will be more out of focus. Kinda like a portrait shot where the person is in focus but the background is out of focus. Giving the effect of drawing ur eye to the model better.
Understand?
also another thing for u to note, the lower that number is the better. Also if u see a lens that says something like f3.5-5.6, that means at the widest point of that lens it will stop down to 3.5 but once u start zooming it will start limiting how far u can stop the lens down. Once zoomed out u will prolly be shooting at 5.6, which means u will have to use a slower shutter speed.
f-stops anywhere from 1.8-4.0 should give u some nice DOF in ur shots meaning it will be out of focus in the fore and background. So for photos with sharpness through the whole range (from front to back) u would want something like f6 all the way up to f32.
f-stops anywhere from 1.8-4.0 should give u some nice DOF in ur shots meaning it will be out of focus in the fore and background. So for photos with sharpness through the whole range (from front to back) u would want something like f6 all the way up to f32.
also on the front of a lens u will see an O with a line through it, that is the filter size. so if u see an o with a / through it and after that it says 52mm, that means u need filters that are threaded for 52mm.
Originally Posted by Elijahtc
also another thing for u to note, the lower that number is the better. Also if u see a lens that says something like f3.5-5.6, that means at the widest point of that lens it will stop down to 3.5 but once u start zooming it will start limiting how far u can stop the lens down. Once zoomed out u will prolly be shooting at 5.6, which means u will have to use a slower shutter speed.
f-stops anywhere from 1.8-4.0 should give u some nice DOF in ur shots meaning it will be out of focus in the fore and background. So for photos with sharpness through the whole range (from front to back) u would want something like f6 all the way up to f32.
f-stops anywhere from 1.8-4.0 should give u some nice DOF in ur shots meaning it will be out of focus in the fore and background. So for photos with sharpness through the whole range (from front to back) u would want something like f6 all the way up to f32.
i have one that is 3.5-5.6 and i realize that i cant take very good close-ups
so if i want to have the ability to take better macro shots then i should go for a smaller number?
i want good lense that is good for a variety of operations... what should look for? i want macro and range...
am i asking the right question here? lol
Originally Posted by Elijahtc
also on the front of a lens u will see an O with a line through it, that is the filter size. so if u see an o with a / through it and after that it says 52mm, that means u need filters that are threaded for 52mm.
whats that about?
Originally Posted by Scionarra
Originally Posted by Elijahtc
also another thing for u to note, the lower that number is the better. Also if u see a lens that says something like f3.5-5.6, that means at the widest point of that lens it will stop down to 3.5 but once u start zooming it will start limiting how far u can stop the lens down. Once zoomed out u will prolly be shooting at 5.6, which means u will have to use a slower shutter speed.
f-stops anywhere from 1.8-4.0 should give u some nice DOF in ur shots meaning it will be out of focus in the fore and background. So for photos with sharpness through the whole range (from front to back) u would want something like f6 all the way up to f32.
f-stops anywhere from 1.8-4.0 should give u some nice DOF in ur shots meaning it will be out of focus in the fore and background. So for photos with sharpness through the whole range (from front to back) u would want something like f6 all the way up to f32.
i have one that is 3.5-5.6 and i realize that i cant take very good close-ups
so if i want to have the ability to take better macro shots then i should go for a smaller number?
i want good lense that is good for a variety of operations... what should look for? i want macro and range...
am i asking the right question here? lol
Unfortunately, I've found with DSLR photography that if you want a lens that is good for a variety of things, you're going to be waiting a while. I managed to complete the range I need with 3 lenses, a 17-55, the 100mm macro, and a 100-400. examples of each below just to show what they're capable of:
1. 17-55, good for a walk around lens, gives great wide angles as well as around town shots. Amazing lens all around.

2. 100mm macro, by itself its a very sharp lens, good for a little extra reach when the 55mm won't quite cut it. Also allows for good close-up shots. This pic was taken with the 100mm and 68mm worth of Kenko extension tubes.

3. 100-400, its a superzoom, for example, here's a pic from a local airshow back in September. It allows you to get up close an personal with some of the planes as they fly.
I managed to find it for $1100, and this was back when they were selling new for around 1400. You can find a used one on photog forums for around 900-1100 now. Look for the newer date codes as some say canon tweaked the UV and newer ones.
As for the speed, imagine your tC running on 2 cylinders....its f/4.5-5.6 BUT it has 2 stop IS which helps with hand holding when you're up around 300-400mm.
As for the speed, imagine your tC running on 2 cylinders....its f/4.5-5.6 BUT it has 2 stop IS which helps with hand holding when you're up around 300-400mm.








