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Originally Posted by rg_chn
(Post 2239798)
Guys, need your help, i'm looking at the Sony DSC w360 and the TX5, which of these should i go in for? The w360, works out to Rs10,000 and the TX5 a little lesser. Need to decide quick guys! |
Originally Posted by rg_chn
(Post 2239798)
Guys, need your help, i'm looking at the Sony DSC w360 and the TX5, which of these should i go in for? The w360, works out to Rs10,000 and the TX5 a little lesser. Need to decide quick guys! |
Originally Posted by kkr2k2
(Post 2239661)
For action shots, USM will help. While the IS helps you take pics with less shake at considerably lower shutter speeds than non-IS lenses!! Choose according to your requirement. If you have the moolah by a lens with both USM and IS!! |
Originally Posted by MileCruncher
(Post 2239682)
Apart from what already stated, USM lens has very low motor whine/noise as well which become critical while shooting in the wild. A little extra noise can scare away an animal/bird. BTW what have you shortlisted? |
Originally Posted by amitk26
(Post 2239699)
Either both or none and thats why lens manufacturer make them that way. Canon IS USM , Sigma OS HSM go hand in hand for telephoto these days. There are some lenses which do not have IS but only USM but mostly macro and short focal length such as Canon 100 F2.8 Macro USM. Lets see why , USM/HSM means faster Auto Focus , You will need fast AF for something like a moving bird / running kid /pets etc. So for something which is moving fast to frame it better you can not just tighten the clamp of your tripod head and wait for subject to arrive in frame. This means either hand held or a loosened tripod head which needs very fast shutter speed which in turn means either a very bright day or larger Aperture to keep light metering same or meaning $$$. So here steps in the IS/OS and you can still shoot with up to three stops lower ( with corresponding change in shutter speed of-course) You can in fact choose to shoot with small aperture to give high DOF with High shutter speed on a bright sunny day with lens firmly tightened on tripod anticipate the movement to prefocus and click when subject is framed properly and you then you don't need IS and USM if you have skills to do this properly have a lot of patience and don't regret the missed shots. Now if you have a fast USM AF, wide aperture , High FL and IS it is best of the world but that comes in white color at sky high price :D |
Originally Posted by joshguy
(Post 2240056)
.... Suggest me the cheap and best option as i cannot expect any resale value for lens which do not have OS/IS and HSM/USM:) |
Originally Posted by joshguy
(Post 2240056)
I was offered a Canon 70-300 for 6500k without IS and USM so i was wondering if it is worth that money? its a 3 months old len. i can get a 75-300 III USM for 11k so am very much confused ,also 55-250 is supposed to be a great lens but it doesnt have USM but has IS :Frustrati Other options are brand new sigma 1. 70-300 DG macro for 7k 2.70-300 APO DG MACRO @ 11k 3. 18-200 OS HSM @ 18k Though i can spend 18k on the last one i am skeptical on the image quality Suggest me the cheap and best option as i cannot expect any resale value for lens which do not have OS/IS and HSM/USM:) |
Originally Posted by joshguy
(Post 2239608)
hi all,while buying a 70-300 which feature is important IS or USM? i mean image stabilizer or Faster autofocus? |
Originally Posted by DRIV3R
(Post 2237910)
I bought the Hoya UV(N) from Savithri Photo House, Coimbatore. You get UV(C) only now, that too with B&W. Hoya's International product portfolio/catalogue no longer has the HMC UV(N). Seems like they have discontinued it. I can try getting you one from here, if needed. Here is their catalog. The price list is from InterFoto. You might also wanna check MediaHome.in, which give better prices for Hoya filters. |
Originally Posted by kkr2k2
(Post 2240105)
And you still haven't mentioned your intended use with the lens!!! |
First besides focal length the optical formula ( number of elements and groups etc.) decide the image quality. |
Originally Posted by joshguy
(Post 2240770)
Am really ,the usage will be for nature ,birds wildlife,people .i would say bit of everything |
Originally Posted by RaguHolla
(Post 2240801)
You need fatser lens for Birds and wildlife. Even for people in motion! So you should go with USM/AF-S/HSM functionality. IS tend to slow down focusing, and tend to 'miss' the shot. USM with Tripod will do a better serves your need. |
Originally Posted by tsk1979
(Post 2240802)
What does IS have to do with focus?? |
Originally Posted by amitk26
(Post 2240840)
Raghu a bit of correction in lens terminology Faster does not refer to the speed of AF motor , Word faster means how fast can be the shutter speed keeping the light meter reading same or in other word how wide the aperture can open. |
Originally Posted by amitk26
(Post 2240840)
An IS system reduces the shake , So you can work at 3 stops lower that means you can keep the shutter speed much slower and allow more light in if there is an IS system instead of necessarily buying a Fast ( Lower F number and wider aperture lens) which is uber costly. |
Originally Posted by RaguHolla
(Post 2240962)
However if bird/subject is moving needing continuous focus wouldn't USM lens do better job? |
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