FPS question: I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions. 1. Does anyone else have the same problem...

JC56 Loc: Lake St.Louis mo.

I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions.
1. Does anyone else have the same problem with their camera? (brand doesn't matter)
2. In determining FPS what settings do the camera manufacturers use?

Thanks

JC

Erv Loc: Medina Ohio

Hey JC. Only think I have run into for this is not having a fast enough card in. I think mine will do 6fps. But I have 2 fast cards in it, and I can build up the buffer with a lot more than that.
Erv

JC56 wrote:

I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions.
1. Does anyone else have the same problem with their camera? (brand doesn't matter)
2. In determining FPS what settings do the camera manufacturers use?

Thanks

JC

JC56 Loc: Lake St.Louis mo.

Erv wrote:

Hey JC. Only think I have run into for this is not having a fast enough card in. I think mine will do 6fps. But I have 2 fast cards in it, and I can build up the buffer with a lot more than that.
Erv

Erv, that's not it....... I use a sandisk extreme pro...one of the fastest cards on the market.

jethro779 Loc: Tucson, AZ

JC56 wrote:

I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions.
1. Does anyone else have the same problem with their camera? (brand doesn't matter)
2. In determining FPS what settings do the camera manufacturers use?

Thanks

JC

According to DPReview the rating of 7fps is not attainable with most settings. They claim an average of 6.3 fps. with a shutter speed of 1/250 in af-s mode with a 16gb Lexar Professional 133x class 10 XDHC card.

So maybe it is that you are not shooting in the right mode or something.

jethro779 Loc: Tucson, AZ

Also reading a little farther in the review it also states that is with the original firmware, so maybe a firmware update is in order.

Neubee Loc: Wisconsin

Maybe-- don't use the highest pixel setting and see if it takes time to refocus for each shot..

JC56 Loc: Lake St.Louis mo.

jethro779 wrote:

Also reading a little farther in the review it also states that is with the original firmware, so maybe a firmware update is in order.

it has the latest and greatest updates.

RichardSM Loc: Back in Texas

JC56 wrote:

I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions.
1. Does anyone else have the same problem with their camera? (brand doesn't matter)
2. In determining FPS what settings do the camera manufacturers use?

Thanks

JC

Are you shooting in low speed fps? Just asking!

Picdude Loc: Ohio

jethro779 wrote:

According to DPReview the rating of 7fps is not attainable with most settings. They claim an average of 6.3 fps. with a shutter speed of 1/250 in af-s mode with a 16gb Lexar Professional 133x class 10 XDHC card.

So maybe it is that you are not shooting in the right mode or something.

Settings like this usually need to be read as "Max of 7fps". It's like the MPG rating in your car. Conditions have to be just right to get the max rating.

If you cannot get a burst of the max 7fps it is because the data buffer in the camera cannot interface the processed capture to the memory card fast enough. 1st placed to look would be the speed of your memory card. Since you say that is sufficiently high enough the next place to look is the amount of data you are trying to transfer. If you recording RAW or RAW+JPEG, that's definitely going to be an issue. Depending on your camera, you may still have an issue if you are using the max resolution possible with JPEG only. I would start by recording JPEG only at medium resolution then work my way up or down as necessary to find the limits.

amfoto1 Loc: San Jose, Calif. USA

Yes, the camera's buffer and speed of the memory card have an effect...

But some cameras... including my Canon 7Ds that are rated to 8 FPS... often have to slow down to meter and focus. Try using manual exposure. And you'll likely need a minimum shutter speed of 1/250.

If your AF system allows, make settings that give shutter release/frame rate priority over focus accuracy. Also turn off things like auto lighting optimizer.

The Canon 1DX can shoot at 14 FPS, but only with the mirror locked up. With normally mirror function, it maxes out at 12 FPS.

jeep_daddy Loc: Prescott AZ

What file format are you using in the camera? jpg, jep+raw or raw.

Your camera might only be rated at 7fps when shooting small jpg's or something like that. I'd read up on the specs of that camera and look closely at the asterisks and the fine print.

Hmoore Loc: The Missouri Ozarks

JC56 wrote:

Erv, that's not it....... I use a sandisk extreme pro...one of the fastest cards on the market.

Is your Extreme Pro rated at 45mb/sec, 95mb/sec or 280 mb/sec?

I have some of the older ones (45mb/sec) and some of the newer 95mb/sec. There is a difference. I haven't tried the 280mb/sec yet.

Also, it just occurred to me that if you have VR or IS turned on with the lens that you are using - that may affect the frames per second that you are getting.

gessman Loc: Colorado

JC56 wrote:

I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions.
1. Does anyone else have the same problem with their camera? (brand doesn't matter)
2. In determining FPS what settings do the camera manufacturers use?

Thanks

JC

Hey Daffy, mtshooter made a comment a few weeks back about this where he explained how a 8 fps Canon 7D could easily get down to 2 fps under the right circumstances. Perhaps he'd repeat that or refer you to it if you pm him.

SharpShooter Loc: NorCal

JC56 wrote:

I have a Pentax k5 that is rated at 7fps it doesn't matter what I set it on it never reaches it. Here are a couple of questions.
1. Does anyone else have the same problem with their camera? (brand doesn't matter)
2. In determining FPS what settings do the camera manufacturers use? ThanksJC

JC, If you promise to try and NOT use to word SH*T to often, I'll tell you why. Deal?

JC, the cameras are rated by the manufacturers using various criteria, which you are never going to encounter in real life.
They are carefully set up to put munimul stress on the file transfer system and mechanics of the camera. The card speed is NOT the bottle neck, it's its the camera buffer.
They are usually tested at ISO of 100, @ 1/8000, wide open, absolutely no presets, but, with the LENS CAP ON. That's not real world since you'll never shoot with the lens cap on, so it's often marketing hype in the lessor cameras.
The Canon 1dx does reach it's frame rates, but that's why it cost $6k+. I don't know about the Nikon.
Remember our DEAL !! :lol: :lol: (just kidding :thumbup: )
SS

JC56 Loc: Lake St.Louis mo.

looks like all manufacturers blow a little smoke.