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Forums > Photography Talk > When using 500W Halogen Lights.... PLEASE HELP! Search   Reply
first123
Photographer
me voy
Posts: 690
Amherst, Massachusetts, US


Mcary wrote:
OP a simple example of RAW vs JPEG and yes I'm using pictures of my cat smile

Camera Data
Fuji X100
ISO 800
F2
Aperture Priority
Center weighted metering
RAW 1/110 second
JPEG 1/125 second
Processing LR 4 Basic Panel
Both files exported to CS5 as 8bit TIFF then re-sized to 800x533 and saved to JPEG level 12

JPEG
http://photos.modelmayhem.com/photos/130317/08/5145e1e0b8bb2.jpg

RAW
http://photos.modelmayhem.com/photos/130317/08/5145e21eee905.jpg

So whats an advantage of shooting RAW?  See the white areas of fur and notice how there's a bit more detail in the RAW image but even with the RAW image detail in those areas is lacking compared to other areas, that's because despite its greater dramatic range due to being a 16 bit (12-14bit Capture file) vs a 8bit file  format RAW has its limitations. 
So what does this tell me?  It tells me I should have done a better job metering the scene and choosing an exposure that would have better recorded detail in those blown/partially blown areas rather then depending on RAW/LR/ACR.

What I see here is that

1- You zoomed in for the RAW image and that increases camera shake
2- Shutter speed is slower in RAW than in JPG so you get more camera shake.
3- JPG image has all the pre sets like sharpening. RAW, you probably have to do it in post.

Mar 17 13 10:16 am  Link  Quote 
Photographer
Mcary
Posts: 1,592
Fredericksburg, Virginia, US


me voy wrote:
What I see here is that

1- You zoomed in for the RAW image and that increases camera shake
2- Shutter speed is slower in RAW than in JPG so you get more camera shake.
3- JPG image has all the pre sets like sharpening. RAW, you probably have to do it in post.

OK not disagreeing with what you've posted. But how does decreasing the physical distance between the subject and the camera increase camera shake?    I realize that decreasing the distance between the camera and subject results in less DOF, but I've never heard that it contributes to camera shake which is why I'm asking.
Agree with the rest of what you posted.

Mar 17 13 11:13 am  Link  Quote 
Photographer
M Pandolfo Photography
Posts: 11,718
Tampa, Florida, US


The problem isn't just the lights you have, it's a combination of the low amount of light those put out (yes, I know they seem bright to the eye) combined with that fact that you have a camera that is a P&S (I believe) with terrible ISO range.

You either need more dispersed light or you need to adjust your ISO (in which case you're going to get grainy images with that camera).

I'm guessing you also can't use a lower shutter speed/low ISO combination because you're hand-holding the camera and it's not on a tripod? So you're raising the shutter speed so the image doesn't blur but that's going to raise the ISO (or make the image way too dark).

You're basically asking both the lights and the camera to perform functions they're not capable.
Mar 17 13 11:29 am  Link  Quote 
Photographer
Justin Bonaparte
Posts: 213
Charlotte, North Carolina, US


Umm, you do realize that there's 4x10^26 watts outside, right? 3 pages in and I'm surprised nobody has mentioned this yet...
Mar 17 13 11:40 am  Link  Quote 
Photographer
Smedley Whiplash
Posts: 16,661
Billings, Montana, US


salvatori. wrote:
I say this with due respect, but what you are asking is insulting.

Your husband is a 'photographer?' No, he isn't. If he can't explain some basic lighting with what you have to work with, he's a guy who just bought a camera.

eh.... so were the rest of us on day 1.

Back in the 70's I gave some work lights a try... they sucked, I found some used cheep speedlights (before we called them speedlights), and some PVC pipe with a bedsheet, and guess what?

I still got shitty pictures.

Now I was a guy with a camera, and some lights, and some books from the library. I guess that was an upgrade, but I still wasn't much of a photographer. Even after I bought my first Novotron pack and heads, I still sucked...

Back in those days, it took a hellova lot of time to become un-sucky.  lol

So, it's not insulting (what she's asking)... it's just we've become a little impatient with newbs on tight budgets. I'd be more inclined to suggest they work outdoors until they can afford studio lights.

My niece and nephew are producing some stunning photography on an iphone 4s with no lights.

Mar 17 13 02:24 pm  Link  Quote 
Photographer
Sentimental-SINtimental
Posts: 1,309
Castle Rock, Washington, US


I did post a link to slave flashes that will produce more light than those hotlights and cost less each... then can be triggered with the on camera flash
You were willing to buy more hotlights... buy the flash units instead and get better results
Mar 17 13 02:43 pm  Link  Quote 
Photographer
salvatori.
Posts: 2,609
State College, Pennsylvania, US


Smedley Whiplash wrote:
eh.... so were the rest of us on day 1.

I don't really want to defend myself and maybe my words were a bit more direct than one would want to hear. But...

The OP is complaining about things that are so fundamental and she has such little grasp over some very basic principles, that it shows not only impatience, but no respect for the craft. The only way her husband wouldn't be able to help her with the lighting setup she asks about is if he was just about as new to shooting as she is.

Yes, we were all noobs once. But if you called yourself 'a photographer' the day you bought your first camera, you were wrong; just as a person who knows how to play chopsticks and buys a piano. The day the piano comes home, does that person call themselves a pianist? Of course not.

Mar 17 13 02:58 pm  Link  Quote 
Photographer
chadsimages
Posts: 357
Los Angeles, California, US


salvatori. wrote:

I don't really want to defend myself and maybe my words were a bit more direct than one would want to hear. But...

The OP is complaining about things that are so fundamental and she has such little grasp over some very basic principles, that it shows not only impatience, but no respect for the craft. The only way her husband wouldn't be able to help her with the lighting setup she asks about is if he was just about as new to shooting as she is.

Yes, we were all noobs once. But if you called yourself 'a photographer' the day you bought your first camera, you were wrong; just as a person who knows how to play chopsticks and buys a piano. The day the piano comes home, does that person call themselves a pianist? Of course not.

My thoughts are, asking questions is rarely something that should be criticized. Asking questions, even without practice or one's own research, doesn't equal disrespect.

It's what you do with the responses that count. In this case the OP has taken the feedback and done something positive with it. I didn't take anything as a complaint.

We all learn differently and choose to gain knowledge differently. I don't know how to develop film, only had a quick class in school. That's considered pretty fundamental by some. I still have to spend a minute thinking about what a 3 stop difference is when using my ND filter. But I still choose to call myself a photographer.

It sounds like your main beef is that she called her husband a photographer? For me, it doesn't matter what others call themselves.

Just my opinion.

Mar 17 13 05:39 pm  Link  Quote 
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