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-   -   Documentary, low light... 20mm 1.8 AF? (https://www.worldphotographyforum.com/showthread.php?t=4714)

J A Mortram 05-07-09 16:03

Documentary, low light... 20mm 1.8 AF?
 
Hi,

any tips for shooting in low natural light (Indoors etc... without lightbulbs on!)

I'd like to keep my ISO as low as possible, shoot wide open and retain a high shutter speed for sharpness... I'm using a D200... any advice for what lens to use?... I like nice, wide, cinematic lens framing, full frame so I was thinking a 20mm 1.8 AF (Second hand hehe!)

Any advice warmly appreciated : D

Cheers,

Jim

deci 05-07-09 16:14

Canon person here........ so don't know nuffink about Nikon lenses, or cameras........... I shoot 'au naturel' whenever possible with my fave lens a Canon 50mm f1.2, but have had some success with a borrowed Sigma 30mm f1.4 and that seems wide enough (too wide really for my tastes) on my 1.6 crop camera.

Only 'tip' really is for best results try a south facing room with net curtains up, to soften the shadows.

1.8, I don't find particularly fast. I also have the 85 1.8 and 50 1.8 and find I need to bump ISO if the light levels are starting to dip.

J A Mortram 05-07-09 16:18

Thanks for the views : )

miketoll 05-07-09 17:01

Sounds like you need a good tripod above all else and some form of remote release like a cable release.

J A Mortram 05-07-09 17:24

Ahhhh I have thought of that... but I shoot during conversations, informally so a tripod is a bit of an intrusion to the mood... : ) ...if you take a look at my gallery, you'll see the kind of shots I am hoping to improve : D

Cheers,

Jim

deci 05-07-09 18:29

Now I recognise you after looking at your gallery :) That Sigma 30mm 'should' be wide enough for your type of shot, only just though. And the 1.4 max f stop 'should' be plenty for these. In fact, any wider and I'd be concerned about distortion.
You will need to watch the DOF at these distances though if you want to use it wide open (Feel like I'm teaching granny to suck eggs here), but I think that you'll be able to stop the lens down a bit and still keep the recomended 1/Focal Length shutter speed. I've had reasonably sharp images, handheld down at 1/30 sec.

J A Mortram 05-07-09 18:55

Thanks a lot Deci... really appreciate your help : )

Don Hoey 05-07-09 19:30

Hi Jim,

Not sure if anyone made a 20mm in f1.8. The A/F in f2.8 is pretty pricy new and that would be reflected in used prices. f1.8 would have a killer price tag by anyone making that. There is very little focus ring movement on that lens between 5 ft and infinity so although I know you struggle a bit with manual focussing there was an AIs therefore manual focus Nikkor 20mm f2.8 in Norfolk Cameras on Friday. Commission sale but a really good price. Way better than I think you will be able to find an A/F version for. In fact if I did not already have the f3.5 version I would have bought it.

I suggest you take your camera in and ask Mark if you can give it a try if it is still there.

Don

J A Mortram 05-07-09 19:39

The one I found was this Don...

http://cgi.ebay.co.uk/Sigma-20mm-f-1...3%3A1|294%3A50

...I have really BIG troubles focusing with a manual... ohhhhh hehe!... no doubt the answer will turn up... maybe a magnifying eye piece?... ooh!... have fun with the big ol' Braun monster!!! : )

Lee 05-07-09 19:48

no experience with Nikon, but do alot of low light shots ,50mm F1.8 at between iso 400-800 and can reasonable handhold to 1/10 of a second,but seeing your gallery i would expect that you would get away with more than that without killing the sharpness.

Enjoy...

Don Hoey 05-07-09 19:58

Quote:

Originally Posted by J A Mortram (Post 37430)

Hi Jim,

Sorry, I was unaware of that one as I had not come across any reviews.

Manual focussing ha, ha. Now you know why I have the D2X.

Your dad was checking out my A/F 85 f1.8 today :D :D I think he was impressed.

Don

J A Mortram 05-07-09 20:00

Thanks Lee : )

J A Mortram 06-07-09 02:06

Hi Don... mmmmmmm D2X... yummy! Oh, yeah... Dad was impressed with the lens for sure... me too when I saw the images... so sharp!... the shopping list grows ever larger hehe! ; )

yelvertoft 06-07-09 08:15

Jim,

You're asking for something that is approaching nivarna. I think Lee's getting closest to the mark here. Practice your hand-holding technique. I know Lee is ex-army, and was probably a world class sniper judging by his photographic abilities. Lots of practice - in your own home taking pictures of cornflakes packets if that's what it takes - and refining your technique will help tremendously, regardless of the glass you're using. Breathing is key in my experience, hold your breath just before you press the button.

Duncan

Don Hoey 06-07-09 08:33

Jim,

Links to two reviews of the Sigma 20mm f1.8 that I have managed to find.

http://www.the-digital-picture.com/R...ns-Review.aspx

http://www.fredmiranda.com/reviews/s...hp?product=125

From those it appears wide open is soft and you may be at f4 for acceptable centre sharpness. For your off centre subjects then you may even have to stop down to f5.6.
I think you are in a try before you buy situation with this one.

Don

J A Mortram 09-07-09 12:38

Thanks for the info Don : )

Joe 19-07-09 00:04

Hi.
Very low light documentary with full frame 35mm/FX sensor....24mm f/1.8 and 35mm f/1.4 I would have thought??
Just thinking that anything wider than 24mm takes on particular influencing effects, which could give your shots a very 'same' look, which might not neccessarily contribute to all your shots....
just my thoughts


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