Accident Investigation Night Shots

My son is an accident investigator who was recently given a Canon Rebel outfit with separate flash. I posted this under another forum and was directed here. The pictures taken are considered as evidence, so, they need to be top notch, but the guys who got these camera outfits were given no training. This is what my son sent me as to what they are using:
My camera is a Canon EOS Digital Rebel XTI 400D. The flash I have is the Canon Speedlite 430 EX. Attached are photographs from a scene I shot two weeks ago. Some photos came out O.K. by me turning the camera on and off after each photo.

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Sounds like the Dept./Comp. should be giving him some training exsp. if they are used as evidence??!!

If he has zero experience with a digital SLR, he should start with the green box (auto) and go from there. I'd highly suggest some simple things like reading the manual and do some internet searching.

Have him expense the most costly gitzo tripod...

I'm not sure if you're allowed to post larger versions but those pictures are tiny, not much to be gleaned from them.

My recommendation is to buy the book called Understanding Exposure by Bryan Peterson. IMHO, that's the best way to start understanding exposure. In order to get decent shots at night of whole scenes he's probably going to need to use a tripod and a remote release with somewhat longer exposures (hence the tripod + remote release).

Gee, those are REALLY small! The 1st one looks like there's something closer than the car & the camera is probably focusing in it?
I can't even tell what the 2nd one is.

The program that you used to shrink the image also removed the EXIF data from it, so the best thing I can tell you now, would be to...
1. Make sure that the focus point you're using lights up on the subject, not a tree in front of it.
2. As Mike said, try a shot in your driveway with the green box (auto) & with the flash on Auto, too. If you get something usable, then you're on the right track. If not, then post a image up to 1024 pixels wide here.

Although the images are way too small to figure out anything definitively, I think the first one looks like severe camera movement. I'm guessing it was a very long exposure hand held with no flash. I can't tell much about the second one.

That's amazing. What police department or DA uses such "investigators"?

Shenanigans wrote in post #9041359
That's amazing. What police department or DA uses such "investigators"?

I was wondering the same thing. If I'm ever a suspect, I hope their 'evidence' photos look like those.

He should really look into training for it..I dunno if you should be posting the evidence..Im not sure how much evidence there is there actually I cant even begin to imagine what the first one is and I dont think I want to.

The manual has some fairly decent advice that comes with the camera about operating it. I think that would be the best place to start

theres so much to learn about operating a camera, let alone doing it effectively. Some people take years to figure it out, just depends but for basic operation then I advise the manual that came with it.

Ironically I'm a commissioned Crime Scene Investigator for the Tulsa Police Department, and I instruct photography for the department. Where are you located? I'd be happy to help him out if you're close.

The quick and dirty way to shoot accidents is to get a tripod and use the non-flash auto settings, NOT THE GREEN BOX. Full auto wants to use flash, most accidents occur at night on poorly lit roads. He must have a tripod and patience.

Have him learn exposure and white balance. Don't trust the AWB at night as most lights are sodium vapor and all of his images will be yellow.

I would recommend RAW but it depends on his departments SOP / Policy.

Let me know if I can help. This is a great place for photo advice and I use it as a learning tool for my side photo business. However there is a huge difference in crime scene photography and non-crime scene photography. The principles of photography are the same, but the legal requirements and court admissibility are different.

FYI, for those who don't know. Many departments, even very large ones, offer very little training for photography. An unfortunate side effect is the overuse of the GREEN BOX. In my department we have 18 crime scene investigators and 17 of them use the green box, guess who doesn't.

It's fast and dirty and if you take enough poor quality pictures saturated with flash blowing out both ends of a histogram, you might get enough pictures for prosecution. This is not how I operate, but it is how many departments shoot crime scenes.

I am not the investigator, my son is. I just posted what he sent me, so, I had nothing to do with size. He is 1,000 miles away and I've never seen or played with the system he was given, I have a Nikon system. I'll point him at this thread and see what happens. He's in Georgia and I'm in George Eastman's natural darkroom, Rochester.

Have him check Joey's post. I have a co worker that did a similar shoot using the same method. It was for a simulated accident scene at night. A long exposure was used with a person walking while firing the flash. A tripod would be a must.

I photograph accident scenes for insurance companies on occasion and for a former state police officer turned independant accident scene investigator and I was told that I may have to appear in court and explain exactly how the image was created, lens used etc. It sounds to me like a sharp attorney could shred any evidence photos taken by a rank amateur by simply asking the focal length and magnification of the lens used to photograph the scene and how much experience he has photographing accident scenes. For example if he used anything other than a "normal" lens to photograph the scene it will add distortion and create a visual situation that actually did not exist at the time of the accident. Also adding any additional lights to the scene could cause problems for him on the witness stand.

Benji

Good point, Benji. Someone, maybe Kodak, had a publication on evidence photography years ago. Things have changed a bit with digital, & a search would be in order for more info on it.