Newbe needs help

[ChasDennis]

I just got my 1st dslr camera it's a cannon rebel xsi, The lens that came with it is a 55-250mm. I want to shot wild life pics. So my question is would I see a big difference in distance if I bought a Tamron SP 70-300mm f/4-5.6 Di VC USD Telephoto Zoom Lens. I was also thinking of going with a teleconveter. Yes funds are a little tight.


Thanks to anyone that answers.


Charlie

[RichardTaylor]

No you would not.

At 300mm the image in your viewfinder will be enlarged by about 17% compared to 250mm.

Re the TC;
You may find this thread, on this site, helpful.
X2 extenders eos 450d

[OsmosisStudios]

Originally Posted by ChasDennis

I was also thinking of going with a teleconveter.

Hehe, please dont.

A TC on an f/5.6 lens, even just a x1.4, means you end up with a 420 f/8, assuming the TC A) mounts and B) doesnt impact the rear element of the lens. That's worse than useless.

Youd be better off looking at a 400 f/5.6L from Canon.

[inkista]

Originally Posted by OsmosisStudios

Hehe, please dont.

A TC on an f/5.6 lens, even just a x1.4, means you end up with a 420 f/8, assuming the TC A) mounts and B) doesnt impact the rear element of the lens. That's worse than useless.

Not to mention losing autofocus.

Youd be better off looking at a 400 f/5.6L from Canon.

Yeah, but if the OP says funds are right and he's only looking at <$300 lenses, chances are good a $1000+ L is not going to be a possibility. I'm guessing the EF 70-300 IS USM (non-L) is also off the list.

[ChasDennis]

inkista

Are you saying that this would be a good lens to go with ? Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras.Is that the lens you are talking about?

[RichardTaylor]

@ ChasDennis

I own both Canon lenses (55-250 - which doesn't see a lot of use) and the 70-300.
The 70-300 iF4-5-F5.6 IS lens is a step up both in IQ & reach however it is still not really long enough for smaller wildlife or distant wildlife in the field.

What and where are you wanting to shoot?