1.4 Prime lens
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Discussion

Cactussed

Original Poster:

5,363 posts

243 months

Friday 14th May 2010
quotequote all
I loved my nifty fifty 1.8 (until I done gone and breaked it). :P

Should I go for 30mm or 50mm?
I know there's a price diff, but its not prohibitive.

Is the wider aperture going to be useful (on a 1.6x sensor)?



Simpo Two

92,803 posts

295 months

Friday 14th May 2010
quotequote all
30mm vs 50mm is a field of view issue and for you to decide according to what you want.

As for f1.8 vs f1.4, I've used both and find that in practice the shallow DOF at 1.4 is more of a hindrance than a help - but YMMV.

illmonkey

19,821 posts

228 months

Friday 14th May 2010
quotequote all
I've got the 50mm f1.8, I find the depth to be spot on, any more and there is no point. But the 50mm is too much, I'd rather have the 30mm. But there is a price difference.

Cactussed

Original Poster:

5,363 posts

243 months

Friday 14th May 2010
quotequote all
The flip side is also the better construction on the 1.4 vs the 1.8...

If I could pay £50 more and get the 1.8 with metal mount, I'd be doing that.

illmonkey

19,821 posts

228 months

Friday 14th May 2010
quotequote all
Cactussed said:
The flip side is also the better construction on the 1.4 vs the 1.8...

If I could pay £50 more and get the 1.8 with metal mount, I'd be doing that.
Good luck wink

cs02rm0

13,937 posts

221 months

Friday 14th May 2010
quotequote all
How much more is the 30mm? I've got the 50 and find the 1.8 great, but I do find myself having to walk away a lot from the people I want to photograph with it.

illmonkey

19,821 posts

228 months

Friday 14th May 2010
quotequote all
cs02rm0 said:
How much more is the 30mm? I've got the 50 and find the 1.8 great, but I do find myself having to walk away a lot from the people I want to photograph with it.
£300 more.

Cactussed

Original Poster:

5,363 posts

243 months

Friday 14th May 2010
quotequote all
The other issue is that I use the 50mm for a lot of portrait.
With a 30mm, I'm going to have to shove it right up their nostril, and som epeople find that a bit uncomfortable...

Simpo Two

92,803 posts

295 months

Friday 14th May 2010
quotequote all
Cactussed said:
The other issue is that I use the 50mm for a lot of portrait.
With a 30mm, I'm going to have to shove it right up their nostril, and som epeople find that a bit uncomfortable...
Then a 30mm is no good silly

cs02rm0

13,937 posts

221 months

Friday 14th May 2010
quotequote all
illmonkey said:
cs02rm0 said:
How much more is the 30mm? I've got the 50 and find the 1.8 great, but I do find myself having to walk away a lot from the people I want to photograph with it.
£300 more.
Suddenly I feel like I need the exercise.

Cactussed

Original Poster:

5,363 posts

243 months

Friday 14th May 2010
quotequote all
cs02rm0 said:
illmonkey said:
cs02rm0 said:
How much more is the 30mm? I've got the 50 and find the 1.8 great, but I do find myself having to walk away a lot from the people I want to photograph with it.
£300 more.
Suddenly I feel like I need the exercise.
rofl

AndWhyNot

2,359 posts

229 months

Friday 14th May 2010
quotequote all
I love my 35mm f/2 and use it for candids and portraiture in environments with limited space. Much prefer it to my 50mm f/1.4 in those scenarios. Remember DoF at 30mm will be greater than at 50mm for any given aperture.

Take it you're considering the Sigma 30mm- or do Canon do a 30mm? Sigma rates highly so I hear.

Cactussed

Original Poster:

5,363 posts

243 months

Friday 14th May 2010
quotequote all
Something from with Sigma or canon around the 30mm range...

johnfm

13,751 posts

280 months

Friday 14th May 2010
quotequote all
Cactussed said:
The other issue is that I use the 50mm for a lot of portrait.
With a 30mm, I'm going to have to shove it right up their nostril, and som epeople find that a bit uncomfortable...
Why would you use a 50mm lens for portraiture?

Surprised you're not in their nostrils with that, let alone a 30mm.

It makes people's faces look distorted in any case.

d1d215

266 posts

205 months

Friday 14th May 2010
quotequote all
what about canon 85mm 1.8 and Sigma 30mm f1.4 . should be a fantastic combo.

Dogsey

4,301 posts

260 months

Friday 14th May 2010
quotequote all
Cactussed said:
The flip side is also the better construction on the 1.4 vs the 1.8...

If I could pay £50 more and get the 1.8 with metal mount, I'd be doing that.
Keep your eyes peeled for a s/h 50mm f1.8 mk1, that was a metal mount jobbie and reckoned to be marginally better image quality than the mk2 I believe.

Mr E

23,066 posts

289 months

Friday 14th May 2010
quotequote all
cs02rm0 said:
illmonkey said:
£300 more.
Suddenly I feel like I need the exercise.
I know the feeling.

EmmaP

11,758 posts

269 months

Friday 14th May 2010
quotequote all
It depends on what sort of portrait you are taking really what lens you opt for. A 35mm focal length can produce great portraits if you wish to show somebody within their environment. An example is this portrait of Francis Bacon by Bill Brandt:



A 50mm lens can prove very useful too as it is roughly similar to the human eye's perception of perspective and gives no distortion at all. Having said that, I find an 85mm focal length to be perfect for head and shoulder portraits. A 135mm is very good also.

I find wide apertures very useful. It depends on whether or not you'll be working in low light or with flash. Also, a shallow depth of field is very useful for close-up portraits, throwing the background out of focus. I'd opt for the 1.4 if you could as it will be of a superior construction.

As for people feeling uncomfortable, that is dependent more upon the photographer's manner and method of working. If you can put someone at their ease and work surreptitiously you can be a few feet away and they'll not notice you.

EmmaP

11,758 posts

269 months

Friday 14th May 2010
quotequote all
d1d215 said:
what about canon 85mm 1.8 and Sigma 30mm f1.4 . should be a fantastic combo.
Yes!

andy-xr

13,204 posts

234 months

Friday 14th May 2010
quotequote all
johnfm said:
Why would you use a 50mm lens for portraiture?
Because it's perfect for it, zero distortion and it's just a question of distance from subject. If space is tight then thats a different problem, one not really solved by something like an 18mm either

I love my 50mm 1.4, much more than the 1.8 - I'm talking about Nikons, not sure what the OP has, but both of mine are the D versions. The 1.8 felt soft in comparison to the 1.4, both wide open. There was enough of a difference in IQ to warrant the extra price tag