motorized lens, are they any good.
Oct 16, 2011 10:34:21 #
jdtx
Loc: SA, Tx.
personally..as I just put on another thread..I have tried 2 "outside" lenses..a tamron and a sigma..neither performs as well as the better Canon glass on my Rebel or the 5DMK11..the motors you are talking about others have clarified I believe..to drive the autofocus USM, and or camera shake IS..good luck
Oct 16, 2011 10:41:21 #
jdtx wrote:
personally..as I just put on another thread..I have tried 2 "outside" lenses..a tamron and a sigma..neither performs as well as the better Canon glass on my Rebel or the 5DMK11..the motors you are talking about others have clarified I believe..to drive the autofocus USM, and or camera shake IS..good luck
I've not been impressed with my Tamron 70-300 lens. So I think now I'm going to go with the Canon. But avoid the "all in one" lens. and get the more expensive 17-85mm lens for now and later upgrade the zoom.
Oct 16, 2011 10:54:40 #
jdtx
Loc: SA, Tx.
I believe you will be much happier that way..and that is what we want ..a happy Rachel
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Oct 16, 2011 11:00:26 #
jdtx wrote:
I believe you will be much happier that way..and that is what we want ..a happy Rachel
:lol: :lol: Am I that B****hy :lol: Omgosh what a rep I getting. 8-)
Oct 16, 2011 11:03:03 #
jdtx
Loc: SA, Tx.
Rachel wrote:
:lol: :lol: Am I that B****hy :lol: Omgosh what a rep I getting. 8-)
jdtx wrote:
I believe you will be much happier that way..and that is what we want ..a happy Rachel
:lol: :lol: Am I that B****hy :lol: Omgosh what a rep I getting. 8-)
Oct 16, 2011 13:22:20 #
Rachel --not sure if this will help BUT it was the heading on the camera store [text]=18-270+pzd&catalog[sort][on]=relevance]Dod Camera I noticed it because it has Pezio--- FYI-- when I was googling and reading all the reviews on-line I ended up with the 28-300 Tameron because it was getting the best reviews for all around sharpness for an "all-in'-one"
Oct 16, 2011 13:35:03 #
Yes , 6 months experience with the 18-270 pzd: quiet and fast focusing , light; significant improvement over other drives. :thumbup:
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Oct 16, 2011 21:05:34 #
Rachel-- turns out the 60d is only about 5oz heavier than the T3i-- price difference about $150.00...
oh the decisions.
oh the decisions.
Oct 16, 2011 21:17:11 #
Dria wrote:
Rachel-- turns out the 60d is only about 5oz heavier than the T3i-- price difference about $150.00...
oh the decisions.
oh the decisions.
Go for the 60D.
Oct 16, 2011 22:04:08 #
ALL auto-focus lenses have motors in them. older ones have ring motors, newer and costlier ones have what they call 'ultrasonic' motors. these motors drive the AF mechanism to move the lenses within the lans housing, to focus.
image stabilization is something else entirely. not all lenses have it, and some cameras do it in the camera body, rather than in the lens. stabilized lenses are, by nature, more expensive than those that lack this feature, but for a telephoto lens, it's really very valuable.
image stabilization is something else entirely. not all lenses have it, and some cameras do it in the camera body, rather than in the lens. stabilized lenses are, by nature, more expensive than those that lack this feature, but for a telephoto lens, it's really very valuable.
Oct 17, 2011 08:31:10 #
SQUIRL033 wrote:
ALL auto-focus lenses have motors in them. older o... (show quote)
Rocky, Tamron makes a lens 18-270mm With a PZD motor and with IS or VR as they call it. It's fast, guite, and stable. Seems to good to be true to me.
Have you had any experience with it?
Currently I leaning against The "all in one" type lens. And considering going with the Canon 17-85mm or a 24-105 lens.
So you have any suggestion for me? You've seen the type of photo's I like to take, so any input form you would be very valuable.
I have a 70-300mm lens without IS. A 10-24mm wide angle lens . Both from Tamron and I'm not impressed with them. The Promaster 18-200mm lens I,m using is my mothers and I have to give it back to her. It's not a very good lens either. No IS and when you extended out all the way the shots are blurry.
So I feel I need to start over in the lens area. Should I go with a "all in one" lens with IS that is fairly fast. Or just get one lens now that is between the 17-85mm to 24-105mm range and later update the Zoom to a 100-400mm?
67
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Oct 19, 2011 08:46:22 #
I believe there is some confusion at play. Using my limited knowledge, I'll attempt to add some clarity. Feel welcome to correct any mis-statement I make.
In the early days of AF (auto-focus), the camera had a small motor that was used to move the lens elements until focus was obtained. As the equipment has evolved, manufacturers have moved those small motors into the lenses. So, if you have a camera capable of AF, it makes sense to get a lens that can be auto-focused by that camera. If you do, that lens will have a small motor in it that gets its power from the camera battery. The addition of the motor does not "speed up" the focusing process . . . it is critical to the focusing process.
In the early days of AF (auto-focus), the camera had a small motor that was used to move the lens elements until focus was obtained. As the equipment has evolved, manufacturers have moved those small motors into the lenses. So, if you have a camera capable of AF, it makes sense to get a lens that can be auto-focused by that camera. If you do, that lens will have a small motor in it that gets its power from the camera battery. The addition of the motor does not "speed up" the focusing process . . . it is critical to the focusing process.
Oct 21, 2011 08:19:59 #
I shoot with Canon 50d with 2 battery grip and I would call this combination a large camera, without the grip a medium camera.
All new canon SLR cameras will be compatible with any non-s Canon lens. I shoot using all Canon lenses as I have tried other brands trying to save money and always come back to Canon. I have several L lenses and several non-L lenses, all of which have the fast motorized focus motor in them. All of them focus very quickly and accurately. I'm sure the non-L lenses focus slightly slower than the L lenses but I sure can't tell any difference in the field. One note on IS which I think is important, if you are shooting a moving target such as a bird or race car and you have adequate light and at least 1/500th shutter speed, turn the IS off.
In this situation the autofocus tracking is slowed down by the IS
and at anything over 500th of second you don't really need IS.
I learned this on a field trip shooting with a very well known nature photographer and I have gotten some great shots using this setting.
All new canon SLR cameras will be compatible with any non-s Canon lens. I shoot using all Canon lenses as I have tried other brands trying to save money and always come back to Canon. I have several L lenses and several non-L lenses, all of which have the fast motorized focus motor in them. All of them focus very quickly and accurately. I'm sure the non-L lenses focus slightly slower than the L lenses but I sure can't tell any difference in the field. One note on IS which I think is important, if you are shooting a moving target such as a bird or race car and you have adequate light and at least 1/500th shutter speed, turn the IS off.
In this situation the autofocus tracking is slowed down by the IS
and at anything over 500th of second you don't really need IS.
I learned this on a field trip shooting with a very well known nature photographer and I have gotten some great shots using this setting.
Canon 100-400 hand held at 400mm
Oct 21, 2011 08:33:17 #
Gary Truchelut wrote:
I shoot with Canon 50d with 2 battery grip and I w... (show quote)
that's good to know. Thanks, and the pictures look great. Catching agood picture of a bird flying is one of my photography goal.
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