AF-S totally useless with ...

[mija1789]

...my dogs.

I had been wandering why my dogs would get agitated and come back to me every time I wanted to photograph them (D70+18-70).

Until today where I realized that AF-S meant ultra-sonic (i.e. within the audible bandwidth for a dog) and probably a very unpleasant feeling for them.
Switched back to an old 24-120 and problem disappeared.

So new technology is not always better!
--
Michel

 

[drip01]

--
Brian
http://www.pbase.com/drip

 

[John_of_LA]

Cat hears higher range than dog, i.e. at high freq. whatever dog hear, cat will.

http://encarta.msn.com/encnet/refpages/RefMedia.aspx?refid=461516319

Not sure what exactly freq being used in AF-S, USM, HSM though. Anyone know?

 

[balletto]

That's pretty interesting.

I've been using my 50/1.8 as my dog lens, I'll have to switch back to the 18-70 AFS and see if my dog has problems with it.

 

[David Lane103217]

Cats probably have better hearing than dogs but they are better at ignoring humans.

 

[drip01]

Cat hears higher range than dog, i.e. at high freq. whatever dog
hear, cat will.

http://encarta.msn.com/encnet/refpages/RefMedia.aspx?refid=461516319

Not sure what exactly freq being used in AF-S, USM, HSM though.
Anyone know?

why there's CAT scan instead of DOG scan ...

--
Brian
http://www.pbase.com/drip

 

[Doug Pitts]

--
.........you gotta be kiddin'.....

 

[John_of_LA]

no text

 

[Charles Currey]

Most strange. I take pictures of dogs at dog shows with hundreds of dogs around. The two primary lenses that I use are the 28-70 f2.8 without AF-S and the 70-200 with AF-S and I have never noticed that either had any affect on the dogs at all. Now my D2hs, which I call the jackhammer, is another story. The sound of its shutter when it is quiet in the ring can really attract a dogs attention.
--
Chuck Currey

 

[ImolaRed345428]

I'm sorry but that is the most ridiculous thing I have ever heard here.

Not to be completely rude but that is just..........

I have no idea what else to say to that.

...my dogs.

I had been wandering why my dogs would get agitated and come back
to me every time I wanted to photograph them (D70+18-70).
Until today where I realized that AF-S meant ultra-sonic (i.e.
within the audible bandwidth for a dog) and probably a very
unpleasant feeling for them.
Switched back to an old 24-120 and problem disappeared.

So new technology is not always better!
--
Michel

--
Save $5 at smugmug use this coupon code