Nikon FPS
Author
Discussion

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
quotequote all
Does the fps of a Nikon increase using a grip with 2 batteries? Was practicing on a tennis court the other day and trying to capture the racket to ball, but the D90 just seemed slow to respond, was wondering if a grip will help.

Turn7

25,706 posts

250 months

Thursday 29th March 2012
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IIRC, you may get an extra 1 or 2 FPS with a grip.

rxtx

6,050 posts

239 months

Thursday 29th March 2012
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Not just the grip, you need good AA batteries in there to increase FPS.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
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AA batteries? The standard EL3e batteries inadequate? Any idea why?

rxtx

6,050 posts

239 months

Thursday 29th March 2012
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They don't provide enough juice. Same situation with my D700, an extra EN-EL3 series doesn't cut it, has to be good (non-alkaline) AAs, or an EN-EL4a. I don't know about the D90 grip, will an EN-EL4a fit in there? Bloody pricey though.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
quotequote all
Good to know, the EL4a wont fit.

GlenMH

5,458 posts

272 months

Thursday 29th March 2012
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Is quality important? If less so, shoot in JPG with lower quality so you can get more shots in the data buffer of the camera. Have you got a really fast SD card so the camera can write the data quickly?

SamHH

5,078 posts

245 months

Thursday 29th March 2012
quotequote all
What exactly is the problem? You say "slow to respond", which doesn't sound the same as too few frames per second.

Nothing will increase the number of frames per second you get with the camera; that is limited by the specifications of the camera (it should be 4.5 FPS).

The comment about shooting lower quality is correct, this will allow you to shoot more frames before the buffer fills (in fact, with the D90, simply selecting JPEG mode should allow you to shoot an unlimited number of frames), but it will still be at the same number of frames per second.

But the "slow to respond" problem could be due to something else, most likely the camera and lens being slow to autofocus.

Can you provide a bit more detail?

Edited by SamHH on Thursday 29th March 14:36

AndWhyNot

2,359 posts

228 months

Thursday 29th March 2012
quotequote all
As said, JPG only makes a big difference but (on the D300) the RAW quality (12bit vs 14bit iirc) also makes a difference.

Also make sure your AF is in "release priority" mode and use the back button AF if you have it.

ETA: I know it's not an AF question but if the camera isn't focusing then, depending on mode, it will be slow to fire.

rxtx

6,050 posts

239 months

Thursday 29th March 2012
quotequote all
SamHH said:
Nothing will increase the number of frames per second you get with the camera; that is limited by the specifications of the camera.
... except when you use the MB-D80 battery pack. From page 184 of the D90 manual,

"The MB-D80 takes one or two EN-EL3e rechargeable Li-ion battery or six AA alkaline, Ni-MH, lithium, or nickel manganese batteries (an EN-EL3e is supplied with the camera). Higher frame rates are available with AA batteries; note, however, that in the case of AA batteries the frame rate will decrease as battery level drops."

SamHH

5,078 posts

245 months

Thursday 29th March 2012
quotequote all
Oh, didn't know that, thanks.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
quotequote all
GlenMH said:
Is quality important? If less so, shoot in JPG with lower quality so you can get more shots in the data buffer of the camera. Have you got a really fast SD card so the camera can write the data quickly?
Just learning about SD cards, still using the same old 4GB I bought off Play.com if I remember correctly, so I imagine its standard possibly mediocre quality.



Edited by Jetl3on on Thursday 29th March 15:48

rxtx

6,050 posts

239 months

Thursday 29th March 2012
quotequote all
Putting a fast card in will help matters massively.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
quotequote all
SamHH said:
What exactly is the problem? You say "slow to respond", which doesn't sound the same as too few frames per second.

Nothing will increase the number of frames per second you get with the camera; that is limited by the specifications of the camera (it should be 4.5 FPS).

The comment about shooting lower quality is correct, this will allow you to shoot more frames before the buffer fills (in fact, with the D90, simply selecting JPEG mode should allow you to shoot an unlimited number of frames), but it will still be at the same number of frames per second.

But the "slow to respond" problem could be due to something else, most likely the camera and lens being slow to autofocus.

Can you provide a bit more detail?

Edited by SamHH on Thursday 29th March 14:36
Hard to describe, but I`ll try. Set to manual, LO1 ISO, F8-F11, 500-640SS, 2-3F-stops lower exposure, set to High Multi Shots and JPEG fine. (fingers crossed this makes sense).
Studying the player and anticipating the ball arriving to his movement, I captured the entire sequence from movement to swing and follow through, despite taking 200 shots I only managed to capture the impact of ball to racquet 3 times.
I appreciate the camera/lens maybe a limiting factor, but I was hoping to compensate for that by increasing the fps with a grip.

If that makese sense.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
quotequote all
AndWhyNot said:
Also make sure your AF is in "release priority" mode and use the back button AF if you have it.

ETA: I know it's not an AF question but if the camera isn't focusing then, depending on mode, it will be slow to fire.
Not come across this or understand it tbh, I will RTFM when I get in.

Back button AF?


SamHH

5,078 posts

245 months

Thursday 29th March 2012
quotequote all
rxtx said:
Putting a fast card in will help matters massively.
I doubt it. The camera will shoot at full speed until the buffer is full. The fast card will only help once the buffer is full.

SamHH

5,078 posts

245 months

Thursday 29th March 2012
quotequote all
Jetl3on said:
Hard to describe, but I`ll try. Set to manual, LO1 ISO, F8-F11, 500-640SS, 2-3F-stops lower exposure, set to High Multi Shots and JPEG fine. (fingers crossed this makes sense).
Studying the player and anticipating the ball arriving to his movement, I captured the entire sequence from movement to swing and follow through, despite taking 200 shots I only managed to capture the impact of ball to racquet 3 times.
I appreciate the camera/lens maybe a limiting factor, but I was hoping to compensate for that by increasing the fps with a grip.

If that makese sense.
Yes, that does make sense.

So it doesn't sound like the autofocus is a problem; I was thrown off by your terminology earlier.

More frames-per-second would help, but what you're trying to do is something fairly difficult. The best still cameras do about 12 FPS and even with them you would probably still be getting a fairly low 'hit-rate'.

You should try experimenting with timing the shot manually rather than taking a sequence and hoping one frame captures the correct moment. It'll take a bit of practice to get used to the delay of your own reflexes and the camera's shutter delay (probably about 1/10th of a second) but once you figure out at what moment during the player's swing to press the button, you might get more successful shots.

SamHH

5,078 posts

245 months

Thursday 29th March 2012
quotequote all
Jetl3on said:
Not come across this or understand it tbh, I will RTFM when I get in.

Back button AF?
Release priority means the camera will prioritise taking the photo when you press the shutter release, even if it isn't focussed. By default the camera will prioritise focussing the lens, even if it means not taking the photo when you press the shutter release.

Back button AF means operating the autofocussing via a button on the rear of the camera instead of via the shutter release.

Both can be useful but it doesn't sound like your problem is caused by the autofocussing from your latest post.

rxtx

6,050 posts

239 months

Thursday 29th March 2012
quotequote all
SamHH said:
I doubt it. The camera will shoot at full speed until the buffer is full. The fast card will only help once the buffer is full.
Depends if he was shooting 16 bit RAW on an ancient card, which could well affect things.

Jetl3on

Original Poster:

1,409 posts

225 months

Thursday 29th March 2012
quotequote all
rxtx said:
Depends if he was shooting 16 bit RAW on an ancient card, which could well affect things.
Only ever JPEG fine as I don't use, or have learnt to use any manipulation software yet.