Questions for Tamron 17-50mm

ahpan · 18th September 2008

Just wondering if it is normal to hear some sound coming out from the lens when the lens is trying to focusing on an object. Is it due to the in built motor? TIA.

This question sounds dumb, but just want to ensure if it is normal...

calebk · 18th September 2008

Originally Posted by ahpan

Just wondering if it is normal to hear some sound coming out from the lens when the lens is trying to focusing on an object. Is it due to the in built motor? TIA.

This question sounds dumb, but just want to ensure if it is normal...

Yes. Didn't you read about it prior to purchasing it? It's quite commonly known that this lens' focusing is a little noisy.

ahpan · 18th September 2008

thanks, did read up before but just curious tat the focusing sound seems weird in the sense nt smooth unlike my other lenes.

calebk · 18th September 2008

Originally Posted by ahpan

thanks, did read up before but just curious tat the focusing sound seems weird in the sense nt smooth unlike my other lenes.

Haha it does sound a little buzzy.

Any focusing accuracy problems? If there aren't any, you should be fine.

ahpan · 18th September 2008

Originally Posted by calebk

Haha it does sound a little buzzy.

Any focusing accuracy problems? If there aren't any, you should be fine.

focusing wise looks fine.

nikkie · 18th September 2008

Originally Posted by calebk

Yes. Didn't you read about it prior to purchasing it? It's quite commonly known that this lens' focusing is a little noisy.

the noisy motor is only for canon-mount.

MontoyaSG · 18th September 2008

too used to canon USM issit

canik7 · 19th September 2008

What about on Nikon mount compared to AFS? Know that it is quite subjective but still like to know what other people thinks.

calkel20 · 19th September 2008

Try to download this and do a focus test. It helps. Then it will tell you exactly if there is any focusing problem with this.
http://focustestchart.com/focus21.pdf
I have tried and find that my lens is Kewl!

windwaver · 20th September 2008

Originally Posted by ahpan

Just wondering if it is normal to hear some sound coming out from the lens when the lens is trying to focusing on an object. Is it due to the in built motor? TIA.

This question sounds dumb, but just want to ensure if it is normal...

Yes, the noise is normal.

stonecow · 20th September 2008

sounds kinda funkyyy

it doesn't bother me much. plus the focussing feels as fast as canon usm

ahpan · 20th September 2008

haha.. yeah funky sound. :P

geeesus · 24th September 2008

The noise is the least bit of worry you should have... does your copy at times go focus hunting at low light setting at times? Thats the headache part of this lens...

skyline1088 · 24th September 2008

Originally Posted by nikkie

the noisy motor is only for canon-mount.

not really. the nikon mount is audible too. not that loud i would say... but it's a damn sharp lens.

canik7 · 24th September 2008

Originally Posted by skyline1088

not really. the nikon mount is audible too. not that loud i would say... but it's a damn sharp lens.

is it the one with internal motor? may i know how long have you had the tamron 17-50mm. thanks

calebk · 24th September 2008

Originally Posted by geeesus

The noise is the least bit of worry you should have... does your copy at times go focus hunting at low light setting at times? Thats the headache part of this lens...

I believe the focus hunt is an inherent flaw of this lens.

adfvr · 25th September 2008

Originally Posted by calebk

I believe the focus hunt is an inherent flaw of this lens.

How about manual focus on this lens? I think it should resolve the focus hunt, right?
I'm ok with manual lens since I have some carl zeiss lenses.
I'm thinking to sell my 17-40L and replace with Tamy.

calebk · 25th September 2008

Originally Posted by adfvr

How about manual focus on this lens? I think it should resolve the focus hunt, right?
I'm ok with manual lens since I have some carl zeiss lenses.
I'm thinking to sell my 17-40L and replace with Tamy.

Manual focus is tough on a DSLR, as its focusing screen is nothing quite like that found on a manual SLR.

The focus hunt only occurs in poor light, and when you don't have a focus assist lamp (either in the form of your built-in flash, or lamps on Speedlites/ST-E2).

geeesus · 25th September 2008

Pardon me about the focus hunt. I still get this at times even if the room is brightly litted (room fitted with an over head flourescent tube) even with AF-Assist using the cams built in lamp. But I noticed that the focus is always true when I use my Speedlight. I am not sure if the Speedlight's AF is superior or the readings been transmitted to the cam is more quicker and accurate then the cam's own built in AF lamp. *SIGH* Bizzare....

skyline1088 · 25th September 2008

Originally Posted by canik7

is it the one with internal motor? may i know how long have you had the tamron 17-50mm. thanks

got it around a month ago.

18th September 2008	#1
ahpan Member Join Date: Jul 2008 Location: Singapore Posts: 322	Questions for Tamron 17-50mm Just wondering if it is normal to hear some sound coming out from the lens when the lens is trying to focusing on an object. Is it due to the in built motor? TIA. This question sounds dumb, but just want to ensure if it is normal... __________________ If it's so easy, everyone can do it! EOS 450D+BG-E5 & 5DMKII+BG-E6, 430EXII & 580EXII & mini 5DMKII

18th September 2008	#3
ahpan Member Join Date: Jul 2008 Location: Singapore Posts: 322	Re: Questions for Tamron 17-50mm thanks, did read up before but just curious tat the focusing sound seems weird in the sense nt smooth unlike my other lenes. __________________ If it's so easy, everyone can do it! EOS 450D+BG-E5 & 5DMKII+BG-E6, 430EXII & 580EXII & mini 5DMKII

18th September 2008	#7
MontoyaSG Member Join Date: May 2004 Posts: 1,175	Re: Questions for Tamron 17-50mm too used to canon USM issit __________________ My flickr! Album - Sony A850 (CZ 24-70) / Minolta 70-210 F4 http://www.flickr.com/photos/montoyasg/

19th September 2008	#8
canik7 New Member Join Date: Jan 2007 Posts: 47	Re: Questions for Tamron 17-50mm What about on Nikon mount compared to AFS? Know that it is quite subjective but still like to know what other people thinks.

19th September 2008	#9
calkel20 New Member Join Date: Jul 2008 Posts: 29	Re: Questions for Tamron 17-50mm Try to download this and do a focus test. It helps. Then it will tell you exactly if there is any focusing problem with this. http://focustestchart.com/focus21.pdf I have tried and find that my lens is Kewl!

20th September 2008	#11
stonecow Member Join Date: Feb 2008 Posts: 294	Re: Questions for Tamron 17-50mm sounds kinda funkyyy it doesn't bother me much. plus the focussing feels as fast as canon usm

20th September 2008	#12
ahpan Member Join Date: Jul 2008 Location: Singapore Posts: 322	Re: Questions for Tamron 17-50mm haha.. yeah funky sound. :P __________________ If it's so easy, everyone can do it! EOS 450D+BG-E5 & 5DMKII+BG-E6, 430EXII & 580EXII & mini 5DMKII

24th September 2008	#13
geeesus New Member Join Date: Jun 2008 Posts: 47	Re: Questions for Tamron 17-50mm The noise is the least bit of worry you should have... does your copy at times go focus hunting at low light setting at times? Thats the headache part of this lens...

25th September 2008	#19
geeesus New Member Join Date: Jun 2008 Posts: 47	Re: Questions for Tamron 17-50mm Pardon me about the focus hunt. I still get this at times even if the room is brightly litted (room fitted with an over head flourescent tube) even with AF-Assist using the cams built in lamp. But I noticed that the focus is always true when I use my Speedlight. I am not sure if the Speedlight's AF is superior or the readings been transmitted to the cam is more quicker and accurate then the cam's own built in AF lamp. SIGH Bizzare....