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View Full Version : Canon 28mm 1.8 vs Sigma 30mm 1.4



Gwangjuboy
07-05-2012, 09:03 PM
They are similar lenses, I'm thinking about them for my 'normal' prime lens. Probably the Canon is a better lens but I'm wondering how much the .4 difference in speed is going to make on this camera?

I'm also wondering about the 35mm canon ef-s. I want a $500 prime that is as fast as possible, sharp and compact (with thw lens mount protruding I don't want some long heavy lens on the camera if I can avoid it) Ideally I would want more a 20mm lens but the sigma is susposedly soft and the really nice 20mm lenses I've seen are expensive apart from canon 20mm 2.8 but its a little slow, which is another possibility.

Any thoughts?

JIKIJI
07-05-2012, 11:08 PM
I ordered a Samyang 24mm f/1.4 for my normal prime lens. With the BMC cropping, I think 28mm is too much for close up range shots.

Gwangjuboy
07-06-2012, 02:20 AM
I ordered a Samyang 24mm f/1.4 for my normal prime lens. With the BMC cropping, I think 28mm is too much for close up range shots.


Definetly interesting, though I have read mixed reviews. At first I was worried about the crop ans still am not happy about it but after seeing John Brawley's Dusk footage with a 35mm 2.0 I'm less concerned. Most of that footage was acceptably wide for an everyday prime so anything under 30mm is doable I think. The 28mm is my first thought but I'm wondering if with the crop I want a faster prime.

Gwangjuboy
07-06-2012, 02:25 AM
One lens that seems a great option is the Sigma 20mmm 1.8. I wonder why it gets so many bad reviews. have people found it to be too soft or crap in some way?

http://www.youtube.com/watch?v=NuCg66EHvyY

Tom
07-06-2012, 04:33 AM
One lens that seems a great option is the Sigma 20mmm 1.8. I wonder why it gets so many bad reviews. have people found it to be too soft or crap in some way?

http://www.youtube.com/watch?v=NuCg66EHvyY

Ive owned the sigma 20mm 1.8 for a few years, i think its great!. Its not very very sharp wide open, but it still looks great. Stopped down slightly and it performs pretty well. It vignetts a bit on full frame, but thats not a problem here. Build quality is great too. Ive found it works really well. I think its probably more useful on a crop sensor as you get no vignetting and better edge to edge sharpness.

Simon Shasha
07-06-2012, 04:43 AM
I own both the Sigma 30mm F1.4 and the Sigma 20mm F1.8 - these are both EX series glass (Sigma's equivalent of Canon's L series) - all I can say is; I will never go back to Canon L glass again - over-priced, over-rated. Sigma EX glass is superior in my opinion - if you don't believe me, hire Sigma's EX 85mm F1.4 for a day - you'll see exactly what I'm talking about. If you want quality that is decently priced, look no further than Sigma's EX line.

Fluoro
07-06-2012, 04:55 AM
Looks like the Sigma should definitely be considered. It's fast for a 20mm!

Grug
07-06-2012, 05:51 AM
One lens that seems a great option is the Sigma 20mmm 1.8. I wonder why it gets so many bad reviews. have people found it to be too soft or crap in some way?

http://www.youtube.com/watch?v=NuCg66EHvyY

I was utterly underwhelmed by the Sigma 20mm on my D300. Perhaps there are good copies out there, but I just thought the IQ it produced was woeful - soft, low contrast, poor flaring. I didn't like it at all.

mhood
07-08-2012, 09:19 AM
I have the 28mm Canon 1.8 EF and like it fine but it doesn't get much press for some reason. I wonder what I'm missing? I plan to start my kit with my non-VC 17-50 Tamron, my 28mm 1.8 (normal) and my 50mm 1.4 Canon (tele). I'll add the Tokina if 17mm isn't wide enough for me.

Salvatore Castellana
07-08-2012, 01:09 PM
Ive owned the sigma 20mm 1.8 for a few years, i think its great!. Its not very very sharp wide open, but it still looks great. Stopped down slightly and it performs pretty well. It vignetts a bit on full frame, but thats not a problem here. Build quality is great too. Ive found it works really well. I think its probably more useful on a crop sensor as you get no vignetting and better edge to edge sharpness.

Wow this Sigma 20mm 1.8 looks really the perfect one! I'm not a specialist, is it better than the tokina 11mm right? Tokina is wider but the Sigma at 1.8 looks the best to use it at night, I guess... what about BMC with low lights? hope to see something soon... thanks for all your interesting post all of you by the way!!

imdjay
07-08-2012, 08:21 PM
the thing with sigma is that they have a noticeable sample variation. trammel hudson was telling me that he went through 15 copies of the 20 1.8 till he got an excellent one.

i just used the 28 1.8 all day today on the epic. i seem to have a more than decent copy. sharpness looks to be there. the only real big consideration is the focus throw is tiny. my AC stared at me when i showed him that i wanted him to pull approximately 2mm ;)

other than that, 28 is right about a normal lens on crop, so i'll probably hunt for a 24 as my normal lens on the bmc. but more likely i'll just get a 17-55 and call it a day, seeing as i am not a DOF junkie and prefer most of my shots at a 4-5.6