bohaiboy said:Just placed an order with Canoga Camera. So now I have the following question, are these lenses gonna make me happy using this camera:
24-105 f/4L IS USM
100-400 f/4.5-5.6L IS ultrasonic


neuroanatomist said:+1 on the 100mm f/2.8L Macro IS. It's a versatile lens, good for portraits (f/2.8 will give you more OOF blur than your 24-105mm), and also good for handheld macro shots. Examples (handheld):
EOS 7D, EF 100mm f/2.8L Macro IS USM, 1/160 s, f/11, ISO 640
EOS 7D, EF 100mm f/2.8L Macro IS USM, 1/150 s, f/13, ISO 100
5dmk.iii said:Great shot of the hopper Mr. Neuro. AF or MF... Do you use macro rails?
5dmk.iii said:40D is crop... so you need a UWA lens too. The 24mm is closer to 40mm on crop, thats not wide enough for some situations. 15mm on crop = 24mm on FF.
the 2 lenses you have are great value and range. Consider substituting the 17-55mm instead of the 24-105mm (which is better for FF due to the range).
EYEONE said:5dmk.iii said:40D is crop... so you need a UWA lens too. The 24mm is closer to 40mm on crop, thats not wide enough for some situations. 15mm on crop = 24mm on FF.
the 2 lenses you have are great value and range. Consider substituting the 17-55mm instead of the 24-105mm (which is better for FF due to the range).
He's considering getting a 5D III so he wasn't asking about the lenses for a cropped camera. But I agree that 24mm on cropped is limiting.
I think those are great choices in lenses for a 5D III. It seems to have outstanding ISO performance so the f4 and f5.6 of the two will be fine. The 100-400 is a fantastic lens. But the others are right about shooting marco. Or you could get extension tubes to increase the macro abilities of the 24-105mm.
bohaiboy said:Ok maybe some dumb questions here, but here it goes.
What are macro rails?
What does an extension tube do?
I get rally good close up pics with my current lenses. I have never shot with a macro. What are the advantages?
Thanks all in advance