? about getting your photos tack sharp on an open ap

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sadieruth's picture
Joined: 06/09/05
Posts: 6187
? about getting your photos tack sharp on an open ap

Ok, so I have been frustrated with myself lately b/c sometimes I feel as though I am going backwards. I have my lens kit (18-105mm, wish I would have listened to you ladies!) that I hardly ever use, and then I have my Nikkor 50mm, 1.8. The thing is, I can't seem to get my photos sharp, unless I am at a 2.8+. Am I doing something wrong? I read it's all about light, but I usually shoot outside in good light. What's the point in having a 1.8 if I can hardly go below 3.0? Is it me? The lens? Any ideas on what I could be doing wrong? I see people shoot wide open all the time and it is sharp.

sweetalienchick's picture
Joined: 10/25/05
Posts: 2106

I wish I knew Sad I also have troubles with getting good focus on that low of aperture. I'm thinking one of these days I'm going to have to experiment and see what works. Sorry I'm no help but you are not alone!

La123's picture
Joined: 04/11/08
Posts: 815

I shoot wide open quite often.. well I like to stick to around 2.0 2.2 sometimes i shoot at 1.4 or 1.8 if I'm losing the light. I do have a lot of oof pics, but every shoot there is less. For me, I think I was just moving around too much to keep my focus in the right place. It makes it a lot harder when your subject is moving around. I guess the other important thing I find is to focus for every shot. keep holding down that button and bracing yourself if you move a smidge, refocus. That's all I can think of. Smile

AmberBella's picture
Joined: 02/15/07
Posts: 1831

Lenses are never at their sharpest wide open...just a sad fact. The value of having the 1.8 is that it is sharp at 3.0 where a lense with a 3.5 aperture isn't sharp until 5.0....make sense?

sweetalienchick's picture
Joined: 10/25/05
Posts: 2106

hmm that makes sense Amber. good to know Smile

sadieruth's picture
Joined: 06/09/05
Posts: 6187

Thanks Amber. I was hoping you would see this to answer it! I appreciate it!

sadieruth's picture
Joined: 06/09/05
Posts: 6187

How do people shoot wide open then? I am still a bit confused. (My mind isn't working well today!)

Amy_&_Eva's picture
Joined: 08/23/07
Posts: 2378

I think it can work, just has to be the perfect combination of factors that are probably really hard to achieve on a regular basis. I'm sure a tripod would help. Or I could be way off LOL. I might have had one or two so far with my 50mm 1.8 that came out nicely at 1.8. I'd have to look back. But I usually keep it at about 2.2 max nowadays.

Joined: 10/26/01
Posts: 3422

I have found the sweet spot on my 50mm f/1.4 to be at around 2.0 - 2.2. I rarely open up more than that and when I do, getting tack sharp pics is really tough.

A tripod does help. Also, really making sure that your main focal points are all in a similar plane helps.

GiGi

La123's picture
Joined: 04/11/08
Posts: 815

I agree with Amber, but I also think that it is very possible to get sharp pictures with at 50mm 1.4 shot @ 1.4. It just takes practice, and for sure a tripod would be helpful. Wink

sweetalienchick's picture
Joined: 10/25/05
Posts: 2106

I think it just depends on what you are shooting. For people I think you have to have a steady hand and someone who doesn't move so much so adults or older kids Blum 3 And like gigi said make sure your focal point is in a similar plane....but you can definitely use 1.4 and a tripod. Well that's what I did in this picture. Settings are f/1.4, ss 1/5, ISO 400 used a tripod and the timer on camera. Now, it's not all that great...ya know...really super sharp but it's good enough for me Smile


The Louvre Paris France
by loidaeg, on Flickr

EL2
EL2's picture
Joined: 12/05/07
Posts: 1665

Loida, that picture is breath taking. I am so jealous, I would love to visit the Louvre one of these days!

sweetalienchick's picture
Joined: 10/25/05
Posts: 2106

thanks El, can you believe this is just a couple minutes after they shut off the lights. I was 2 minutes late Sad But I love how the sky turned out! And it was dark. hehe And... I'm going back in November :oops: I hope I get to see it again.

sorry to hijack post! carry on Smile