Thursday, May 23, 2013

I needed more power.....

I bought an extender for my 70 200mm lens
it kicks it out to 400mm. Only problem is
you loose 2 full stops... so it took my 2.8 to a 5.6 lens.
I only had time to play with it for a few minutes tonight,
so the jury is still out.
 Does anyone already have an extender that could give me some tips.


  1. I don't have an extender. Did you use a tripod? With a tripod holding your camera still (and a remote to trip the shutter, if you have one), you can use a slower shutter speed to compensate for the aperture increase.

    That said, a 200mm is my longest lens (though I do have a cropped sensor), and I've used it to shoot the moon with my tripod with good results. I have to crop the picture a lot to see any detail on the moon, but as long as I get good focus (tough to do with the moon!), cropping isn't a big deal.

    Here's my best attempt:

    And here's the tutorial I used. Very helpful. My settings were probably very close to the ones mentioned in this post:

  2. I have the 2x extender too. I used it on my 70-200 for many years and then last year bought the straight 400/5.6. Sometimes I even put the 2x on it for an 800/f11. The only problem with that is autofocus doesn't work at f11 so you have to focus manually.
    I think you'll like the extra power, it's kind of whole new world that you see at 400mm. Looking forward to seeing 400mm pictures.

  3. Thank you Pam for sharing and to Marisa and Matt for the great tips. I want to photograph the moon too...I have to try this....