70-300mm lens

Copps1991

Copps1991

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Matthew
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I am looking at getting 1 of these, either sigma or tamron there roughly around the same price just wondering if there are any bad/good i should know before i decide on which to buy.


i have a seperate question while i was looking i came across a 500mm mirror lens (samyang) what is the difference it seems like there fixed at the 500mm and also f8
 
I have the sigma 70-300 macro. I love it. Light, quick to focus, easy to use, not unwieldy. Ive also ordered a 2x teleconverter to go with it (ironically cost more than the lens haha). I'd suggest playing with one in a store before deciding to buy. Oh, and if you want to see some photos from the sigma, I put a thread in the bird forum not long ago.
 
I have an old Tamron 500mm mirror reflex lens (or catadioptric if you're being posh). Fixed at 500mm and at f/8 and mine is manual only I.e. It doesn't talk to the camera. Advantages- the mirror makes it much shorter and lighter than equivalent refracting lenses (?). Disadvantages - f/8 is quite slow and the bokeh isn't very smooth I.e. Out of focus lights become ring shaped.
I was going to sell it but still use it for moon shots as it has a tripod collar and a set of filters.
Not sure if the samyang is similar but you will get more use out of the zoom.

J
 
Image quality of my 10 year old Sigma 70-300 is perfectly decent. A bit of softness at the 300 end- but that's normal for most zooms. It's a non-stabilised (and non-DG) job- but aside from the zoom being a bit stiff it's perfectly usable. They're £60-80 2nd hand.
You can pick up a Canon 70 300 IS new for about £240 on fleabay- which by all accounts are very good.
 
I went for a sigma second hand £31 including postage so pretty happy with that says there is some wear on the outside just the waiting game :)
 
And almost disposable at that price- if it gets dirty just throw it away and get another!
 
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