verysimplejason said:STM is relevant for movies, not so much for still pictures. I don't know if 55-250 is a useful focal length for movies but from still pictures perspective, I'd rather have USM installed. It might drive a little bit the price up but from my experience using 55-250, USM feature will be very much welcome for the 55-250 for a little bit fast AF.
With its lightweight construction, the micromotor AF of the 55-250 really isn't that slow at all, so no need for USM, I would say.
Hesbehindyou said:With its lightweight construction, the micromotor AF of the 55-250 really isn't that slow at all, so no need for USM, I would say.
Heh, you mean you have no need for USM. The micromotor in my 55-250 gives me plenty of missed shots. It keeps track okay, it's the initital locking on that's too slow. This is not a problem for most types of photography but is for some types.. I own a 55-250 and Sigma 100-300 f4 (with their version of USM) but would spring for a USM 55-250 in a heartbeat.
mrsfotografie said:Still, while USM would be great I think Canon will not be motivated to make it because such a lens would (rightfully) eat into sales of the EF 70-300mm f/4-5.6 IS USM which could really benefit from a ring USM and non-rotating front element.
paul13walnut5 said:May I confess something here...
I don't understand the benefits of STM lenses.
Ok, I shoot video with the lens set to MF. My 22mm STM works great for stills on my EOS M. Which is all I really need to know, I'm just curious how Canon would market an STM lens to me on it's own merits.
mrsfotografie said:verysimplejason said:STM is relevant for movies, not so much for still pictures. I don't know if 55-250 is a useful focal length for movies but from still pictures perspective, I'd rather have USM installed. It might drive a little bit the price up but from my experience using 55-250, USM feature will be very much welcome for the 55-250 for a little bit fast AF.
With its lightweight construction, the micromotor AF of the 55-250 really isn't that slow at all, so no need for USM, I would say.
So USM, no. STM? Possible but more for marketing purposes than anything else.
verysimplejason said:mrsfotografie said:verysimplejason said:STM is relevant for movies, not so much for still pictures. I don't know if 55-250 is a useful focal length for movies but from still pictures perspective, I'd rather have USM installed. It might drive a little bit the price up but from my experience using 55-250, USM feature will be very much welcome for the 55-250 for a little bit fast AF.
With its lightweight construction, the micromotor AF of the 55-250 really isn't that slow at all, so no need for USM, I would say.
So USM, no. STM? Possible but more for marketing purposes than anything else.
Sorry to ask but have you really used a 55-250? I am using one and I've used a 70-200 F4 USM L. AF speed is a lot different. Most of the time it means getting the shot or not. I used both for events. I don't really know from what perspective where you able to say that the micromotor AF of 55-250 is enough. I've covered a children indoor school-olympics and I've got a lot of misses using my 55-250. I have to borrow my friend's 70-200 to cope with the kids.
mrsfotografie said:I had one and used it on a 400D. Of course it can't compete with a 70-200 L but then I think it's good enough given the cost of the lens.
paul13walnut5 said:Health to use your 400D, I loved mine.