Any Digital Photographers
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S2red

Original Poster:

2,557 posts

220 months

Saturday 4th February 2012
quotequote all
ARGH!

16 year old son has just bought digital SLR and like any teengager is now an instant expert

Well dad when you took photo's it was film blah blah digital is different

Settle an arguement panning shot good light car doing 70+ I'd go for fairly fast shutter to freeze car he is going 1/60 or 1/100th


Comments

bigblock

782 posts

227 months

Saturday 4th February 2012
quotequote all
If you post your question in the photography section you will get more information than you ever dreamed possible. smile

http://www.pistonheads.com/gassing/forum.asp?h=0&a...

paulqv

3,124 posts

224 months

Saturday 4th February 2012
quotequote all
It depends on three variables:

1. Distance to subject. The shorter the distance then the higher the shutter speed
2. the length of the lens. So for EG a 200mm lens if using longer then one up shutter speed; or shorter you use the next slowest when you half the length of the lens
3. depth of filed required and the maximum apperture of the lens.

In simple terms he is wrong. That would be far too slow to freeze a car unless very far away

As an approx, a car at 60mph at 100ft using a 200mm lens then need 1/4000th to freeze

Best advice for budding experts, buy a good photographic book and learn it and put what you learn into practice!

Digital photography is great as you can more easily discard the rubbish you take whereas if like me you started with film, and I mean Colour!! then we had to discard all the rubbish after paying at the printers! Rough rule of thumb; If you can take 5 or more good out of 35 then you are bloody good!

There is no great difference between film and digital for most users. Film gave more latitude in exposure but modern digital photo editing software can compensate like that to a degree. My view is, that if the initial photo isnt good enough, then unless there is something exceptional or unique I wont digitally alter it much and would bin it.

Hope this helps

Paul

itsnotarace

4,685 posts

238 months

Saturday 4th February 2012
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S2red said:
Settle an arguement panning shot good light car doing 70+ I'd go for fairly fast shutter to freeze car he is going 1/60 or 1/100th
Both correct, it depends what end result you are trying to achieve

filski666

3,871 posts

221 months

Saturday 4th February 2012
quotequote all
depends - if you want to capture the action and give the appearance of speed and motion use slower shutter speed:


this one was taken at 1/50 sec

high shutter speed makes it look like the car is parked:


this one was taken at 1/800 sec

  • edit to change slower shutter speed picture for one of similar composition to fast shutter speed and add shutter speed info*


Edited by filski666 on Saturday 4th February 15:46

Magic919

14,490 posts

230 months

Saturday 4th February 2012
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I'd go with the speeds your Son suggests if it were me. Plenty of motion in the background and wheels still seem to be turning. Needs better follow technique.

Deluded

4,968 posts

220 months

Saturday 4th February 2012
quotequote all
As above.

You are both right but which method you choose depends on the style of photo you want.

Digital or film makes no difference. The techniques and principles are all the same. Only difference is how the camera outputs the image.

S2red

Original Poster:

2,557 posts

220 months

Saturday 4th February 2012
quotequote all
Think the problems is he has the camera but not done any photography and thinks he knows it all

Good old trial and error comes to mind

Like the Escort picture BTW

we are down at Brands at end of March so he'll get plenty practice

filski666

3,871 posts

221 months

Saturday 4th February 2012
quotequote all
S2red said:
Think the problems is he has the camera but not done any photography and thinks he knows it all

Good old trial and error comes to mind

Like the Escort picture BTW

we are down at Brands at end of March so he'll get plenty practice
Cheers smile

If he has not done any photography before he may struggle with the panning slow shutter speed shots and just end up with a load of blurry pictures and be disheartened - best to start off with faster shutter speeds and gradually slow it down until you get the desired effect without blurring the parts you want crisp.



S2red

Original Poster:

2,557 posts

220 months

Saturday 4th February 2012
quotequote all
Yes

He'll learn

flat-planedCrank

3,697 posts

232 months

Saturday 4th February 2012
quotequote all
As others have said, both approaches could be thought of as correct smile

However the longer the shutter is open the more technique is required to return a decent image. Many people will try and get some sharper, high-shutter-speed shots in the bank before slowing the shutter for lower percentage shots.

It's worth mentioning that just because slower shutter shots are more difficult, it doesn't actually make them better shots. Picking the right shutter speed is a skill of experience and observation as slow shutter panning technique is smile

Eg: Here is a couple shots of the same car at the same corner:



The first is obviously a much slower shutter speed and is arguably more difficult to take - but also arguably the second shot is more appealing and full of drama.



Again, here are 2 cars going through the same corner:




The first is from the outside of the corner with a high shutter speed, the second from the inside with a longer shutter speed.

It can be as much about deciding on the right shot as it is actually taking them smile

Edited by flat-planedCrank on Saturday 4th February 20:05

mattdaniels

7,362 posts

311 months

Saturday 4th February 2012
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paulqv said:
In simple terms he is wrong.
In simple terms, for a panning shot, I'd disagree. It's just a question of panning smoothly and at the right speed the slower your shutter. Perfectly possibly to get crisp cars in a pan at 1/100th.


Gad-Westy

16,568 posts

242 months

Saturday 4th February 2012
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This is stretching the limits of what one might call 'acceptably sharp' but I was playing around at the time. I'd guess the speed was about 60 mph.

1/30s


_GAD0033 by G.A.D, on Flickr

dibbly dobbler

11,490 posts

226 months

Sunday 5th February 2012
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I only tried this once - got decent results at 1/60. (NB I make no claim to above average skill!).

However - it was vintage cars doing 30/40 mph tops so I guess if your targets are going to be doing twice that then 1/60 is probably pretty ambitious!

On though balance I would say his suggested shutter speeds are about right, sorry smile

jurbie

2,440 posts

230 months

Sunday 5th February 2012
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For a straight forward pan I would agree that your son is about right but I would also underline the earlier advice of starting higher and working his way down to those speeds. At the track his pictures will look fantastic on the screen in the back of his camera but when he gets them on a pc they will likely be awful. Slow speed panning takes a lot of practise as it's all about developing a smooth technique.

I would also make him aware of the joys of parallex shift which will become a problem the slower he shoots. Basically unless he is exactly parallel with the car when he shoots then large sections of the car will turn out blurred.



This was 1/40th and the front is blurred because it is moving away from me, the middle is sharp because it's parallel to me and the rear is blurred because it is moving towards me. You can do nothing to prevent this except exploit it's artistic merit so if he starts getting results like this make sure he doesn't get frustrated and disheartened. Instead he must hone is technique in order to put the sweet spot in the right place.

Fordo

1,572 posts

253 months

Sunday 5th February 2012
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flat-planedCrank said:
It can be as much about deciding on the right shot as it is actually taking them smile
well put, very wise words indeed!

S2_DPD

249 posts

258 months

Sunday 5th February 2012
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It's nice when it works out...


corozin

2,680 posts

300 months

Sunday 5th February 2012
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Since he's using digital tell him to start with a faster exposure and then start working down. Start at 1/500 or 1/320 and work towards around 1/125 in decent daylight. Possible to go slower but that will depend on distance to subject and how good his tracking abilities are.

A lot depends on the light on the day.

S2red

Original Poster:

2,557 posts

220 months

Monday 6th February 2012
quotequote all
Lots of sensible advice guys thank you

I think try try and try again will be what he WILL be doing the benefits if digital no 35mm film costssmile

One extra question

Anyone point me in direction of one of those shots where front of car is in focus but blurs out to rear

Was trying to explain but could not for life of me fine example

JohnS

938 posts

313 months

Monday 6th February 2012
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Something like this type of shot?