Fast lens or flashgun? need some suggestions


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Dylan1987

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Oct 14, 2009
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#1
Hello CS,
newbie here...

currently using 17-50. but performance under low light or indoor still limited, so looking for upgrades. shortlisted some lenses:

sigma 30 f1.4 vs canon 28 f1.8 vs canon 35 f2 (1.4L is too ex :X)
sigma 50 f1.4 (heard of focusing problem)
canon 50 f1.4 (review show poor lens construction)
430EXII

currently using 50D. intended use will be indoor... budget less than $800.
 

Last edited:
Oct 11, 2009
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#2
flash... you can do many things with flash compared to a lens... try it out! =)
 

May 5, 2009
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#3
a flash is still a better choice, if u really wan to consider prime to replace your 17-50, i'll suggest the range of 30-35mm for a cropped body, but bear in mind tat u'll have to "zoom with your leg", do u have enough space to move back at the place u normally shooting?
 

Feb 6, 2006
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#4
Flash will be better choice..

It help u to ceate light when there is none
Fast lens can only help u when there is available light.. ;p
 

sequitur

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Apr 17, 2003
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#5
to each his own.

i'd take fast lens over flash any time.


are you willing to walk around with a flashgun? what are you shooting? street shots? events? do you want to be hidden in the background or do you want to be foregrounded and make sure people know you're there?

different applications have different needs.


with current DSLR technology (50D, indeed!), high ISO images is still clean and useable.. if you can see the scene with your eyes, a f/1.4 lens will be able to capture the image at reasonable shutter speed.
 

Anson

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Jul 31, 2006
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#6
If the TS is using a 5DM2 with a F1.4 prime shooting at ISO 6400, depend very much on how much available light it could be better than a flash.

For me I chose to invest in flash instead. :bsmilie:
 

Dylan1987

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Oct 14, 2009
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#7
thank you everyone for the replies.

plasticeye: seriously i prefer natural skin tone :( if i drop the flash compensation will i be able to reach a closer normal skin tone?

miaoteh: yup, i tend to move forward when taking with my current zoom lens. so moving backwards should be alright... your 30-35 range is for FF range? that means its about 45-50 for my cropped?

horizon_grazer: sounds good to me :)

sequitur: i have tried ISO 800 and 1600, not tt obvious unless i zoom it in. i guess 4R n 5R photos should not be obvious.

Anson: sadly wont be moving to FF i guess in the next 2 years i guess... love the 30mm 1.4L. haha
 

Dylan1987

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Oct 14, 2009
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#8
so i guess my first choice would be

flashgun first 430EXII

for the list of primes, anyone can state which would be their choices? :D

for FF, the commonly used range is 35 and 85. but on cropped, what would be the recommended primes?
 

May 5, 2009
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#9
...
miaoteh: yup, i tend to move forward when taking with my current zoom lens. so moving backwards should be alright... your 30-35 range is for FF range? that means its about 45-50 for my cropped?
...
nonono.. i mean 30 or 35 for your cropped sensor.
 

Aloyz

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Jun 15, 2008
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#10
Shooting at F1.4 will the picture look soft? I still think flash is better option :)
 

catchlights

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Sep 27, 2004
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#11
Hello CS,
newbie here...

currently using 17-50. but performance under low light or indoor still limited, so looking for upgrades. shortlisted some lenses:

sigma 30 1.4 vs canon 28 1.8 vs canon 35 1.8 (1.4L is too ex :X)
sigma 50 1.4 (heard of focusing problem)
canon 50 1.4 (review show poor lens construction)
430EXII

currently using 50D. intended use will be indoor... budget less than $800.
if you only interested to shoot single subject, and indoor always have plenty ambient light, your subject able to hold poses, you can live with very narrow DOF, and also good at metering and able to shoot with manual mode, you have lot of time to do post processing adjusting WB....... go with fast lens.

else just get a flash, it has more flexibility.
 

Dylan1987

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Oct 14, 2009
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#12
miaoteh: it's hard to obtain the range on my cropped body. correct me if i am wrong, with the 28 f1.8 it will be 44.8mm. to get 30-35 range on cropped would means that the closest is EF20.

Aloyz: i have read recently that 1.4 is hard to aim. the eyes would be clear but the ear onwards would be blurred...

catchlights: well, i guess i shall go with a flash for now.


for prime lenses, at 50mm the sigma perform better than canon provided it is calibrated well. if i get that lens, by sending it to the customer service will they fix the calibration for me?
will there be a large difference between 1.4 and 1.8 DOF? the speed will be one step faster, so it means that the shutter would be faster also right?
 

Stoppable

Senior Member
Apr 28, 2003
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#13
Yes Sigma will do the re-calibration for free.
Yes, 1.4 and 1.8 will have a different DOF, with 1.4 being shallower. 1.4 is faster than 1.8 so can use a faster shutter speed.
If you have decided on getting the flash, why are you still comparing lenses? You got BBB virus. Take care...
 

Dylan1987

New Member
Oct 14, 2009
690
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Singapore
#14
Yes Sigma will do the re-calibration for free.
Yes, 1.4 and 1.8 will have a different DOF, with 1.4 being shallower. 1.4 is faster than 1.8 so can use a faster shutter speed.
If you have decided on getting the flash, why are you still comparing lenses? You got BBB virus. Take care...
haha... yeap, i guess i am in danger now.

ok thanks everyone for your views...

now checking out whether which flashgun to get. 430EXII is $490, but the price of Nissin tempt me alot. with $410 i can get the Nissin 866~! :think:

i have used the 580EXII before, but not the 430EXII. some reviews mention that the buttons for 430EXII are hard to press, any view on that?
 

g75yu

New Member
May 3, 2008
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#15
Agree that flash gives you the most flexibility and probably fewer bad shots. Also sometimes when the lighting is uneven etc a flash is probably preferred to a fast lens.

I've taken pictures at evening dinners with both flash and using the lens at f1.4 and I definitely prefer the flash shots
 

ZerocoolAstra

Senior Member
Mar 13, 2008
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#16
Dylan1987 said:
miaoteh: it's hard to obtain the range on my cropped body. correct me if i am wrong, with the 28 f1.8 it will be 44.8mm. to get 30-35 range on cropped would means that the closest is EF20.
You sound a bit confused by this one.
What 'miaoteh' was suggesting was for you to get a prime lens with focal length of ~30mm, so on your cropped body, the effective field of view would be like a 50mm lens on FF body (normal field of view).
 

Dylan1987

New Member
Oct 14, 2009
690
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#18
g75yu: thanks for the input. i noticed u using 430EXII, are the buttons and controls easy to use?

ZerocoolAstra: oh now i understand, will keep that at back of my mind :)

joechin: shall get one to play with soon :D
 

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