Converter/Extender: I have a Canon 7D ii and 300 4L prime lens. I want to get an extender/converter 1.4iii or 2.00 - any suggestion as to which one is better. I am mainly interested in...

selwyntdavid

I have a Canon 7D ii and 300 4L prime lens. I want to get an extender/converter 1.4iii or 2.00 - any suggestion as to which one is better. I am mainly interested in birding and wildlife photography. I do have 24-105 4L as a go to lens.

MT Shooter Loc: Montana

selwyntdavid wrote:

I have a Canon 7D ii and 300 4L prime lens. I want to get an extender/converter 1.4iii or 2.00 - any suggestion as to which one is better. I am mainly interested in birding and wildlife photography. I do have 24-105 4L as a go to lens.

You will be MUCH happier with a 1.4x than a 2x TC. Both in focus speed and focus accuracy. The 2x will also have more loss of image quality.

selwyntdavid

Thank you MT Shooter.

TriX Loc: Raleigh, NC

MT Shooter wrote:

You will be MUCH happier with a 1.4x than a 2x TC. Both in focus speed and focus accuracy. The 2x will also have more loss of image quality.

👍👍. Good advice.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

selwyntdavid wrote:

I have a Canon 7D ii and 300 4L prime lens. I want to get an extender/converter 1.4iii or 2.00 - any suggestion as to which one is better. I am mainly interested in birding and wildlife photography. I do have 24-105 4L as a go to lens.

OK, you have a 480 mm F4 prime lens. LEARN TO GET CLOSE. Or, if you must, use the smallest converter you can, in this case, the 1.4 which should give you a 672mm f4 prime lens. If this is not enough, then I suggest buying a bigger lens. A CONVERTER, REGARDLESS OF MANUFACTURE, WILL DEGRADE (TO SOME EXTENT) THE IQ OF THE LENS. PERIOD.

jerryc41 Loc: Catskill Mts of NY

MT Shooter wrote:

You will be MUCH happier with a 1.4x than a 2x TC. Both in focus speed and focus accuracy. The 2x will also have more loss of image quality.

Less is more!

inbigd

I tried to use a Canon 2x with my 70-200 f4 to get more reach. Image quality suffered and I resold it on eBay.

Haydon

The 1.4x should only degrade imaging approximately 5% whereas the 2x could hit you as much as 25%. Go with the 1.4x. Keep in mind your AF will be reduced in speed even with the 1.4x.

RRS Loc: Not sure

billnikon wrote:

OK, you have a 480 mm F4 prime lens. LEARN TO GET CLOSE. Or, if you must, use the smallest converter you can, in this case, the 1.4 which should give you a 672mm f4 prime lens. If this is not enough, then I suggest buying a bigger lens. A CONVERTER, REGARDLESS OF MANUFACTURE, WILL DEGRADE (TO SOME EXTENT) THE IQ OF THE LENS. PERIOD.

Almost right, he will have 672 at f/5.6, one stop loss with the 1.4. You would have a view of 960 at f/8.0 with the 2X. Look up Arthur Morris on the internet and see what he does with extenders. Everyone's right, there is more of a loss with the 2X. I always carry one with me for when I just can't get any closer but still want that shot. I do feel that the amount of "wall hangers" will diminish with the 2X. One more thing, when you use an extender or if you'd buy a long prime just remember that any movement by you will show up very quickly. You do have to learn how to shoot with the longer lens and at 960 I shoot with a tripod, it sure helps.

Retired fat guy with a camera Loc: Colorado

I own both the lens as you. Love them both. I had a 1.4 and a 2x. I hated the 2x and got rid of it. I kept the 1.4. Unless you are a steady as a rock, you might try a gimbal head on a tripod. I do. The best extender is your feet. The closer you can get the better shot you will have.

jeep_daddy Loc: Prescott AZ

MT Shooter wrote:

You will be MUCH happier with a 1.4x than a 2x TC. Both in focus speed and focus accuracy. The 2x will also have more loss of image quality.

imagemeister Loc: mid east Florida

selwyntdavid wrote:

I have a Canon 7D ii and 300 4L prime lens. I want to get an extender/converter 1.4iii or 2.00 - any suggestion as to which one is better. I am mainly interested in birding and wildlife photography. I do have 24-105 4L as a go to lens.

IMO, you will save some money by using the 1.4X II and 2XII versions vs the III series without losing any performances.

The AF speed will suffer in any case. IMO, you will be surprised by how good the 2X images are with this lens - but you will have to have very good stabilization @600mm and lots of light to see it !

In either case, using the good body you have, for 1.4X, I would just crop and use pixel enlargement if needed. If I wanted to get to 2X, I would use the 1.4X and crop my way to 2X and use pixel enlargement if necessary.