Eye piece blanking


Roscoe

Link Posted 29/03/2013 - 12:29
Does anyone use the Pentax Eyepiece cover when using a tripod?

Does extra light enter the camera and change the metering,or was this on 35mm cameras only

davidstorm

Link Posted 29/03/2013 - 12:40
I don't use the Penjtax eyepiece as it doesn't fit the K-5. I've made one out of cardboard covered with black electrical tape and it works perfectly.

Light will enter the eyepiece if you're doing long exposure shots so it is important that you keep it covered.

Regards
DAvid
My Website http://imagesbydavidstorm.foliopic.com

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Some cameras, some lenses, some bits 'n' bobs

Frogherder

Link Posted 29/03/2013 - 12:53
Likewise I don't use the Pentax gubbins - its too much of a pain to fit, then refit, then reset the dioptre setting which has invariably moved.

I use a bit of black plastic cut from an old tape box which just slides under the rubber surround

You can check out how much light gets in by taking two shots, one with one without blanking.

Incidentally if I'm taking a low level shot (not looking through the eyepiece) by estimating the shot I usually put my thumb over the eyepiece.


regards
Bernard

elfer

Link Posted 29/03/2013 - 12:54
davidstorm wrote:
I don't use the Penjtax eyepiece as it doesn't fit the K-5.
DAvid

Are you sure? The same "Finder Cap" fits both my K-5 and K10D. And also my ME-Super and Super-A (and K-30, before I sold it).

You have to remove the rubber eye piece, then slide in the cap in its place

Part number 31011. (Supplied as standard with the K-5 & K10D, but an optional extra on the K-30).

DrOrloff

Link Posted 29/03/2013 - 12:57

johnriley

Link Posted 29/03/2013 - 13:54
Just cover the eyepiece with the hand, as the exposure is locked as soon as the shutter button is pressed.
Best regards, John

Smeggypants

Link Posted 29/03/2013 - 17:39
Roscoe wrote:
Does anyone use the Pentax Eyepiece cover when using a tripod?

Does extra light enter the camera and change the metering,or was this on 35mm cameras only

Yes it does.




.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283

sussexwolf

Link Posted 29/03/2013 - 18:09
DrOrloff wrote:
Blu tack for me.

I would be worried that Blu Tac might damage the Anti Reflection coating on the eye peice
K30, K-x, *ist DL. Pentax 60-250 F4, Sigma 18-125 & 70-300

DaveHolmes

Link Posted 29/03/2013 - 20:51
I never bother covering the eye piece TBH... With long exposures I metre, take the shot and if it needs adjustment I change the shutter to compensate and take the shot again...
........................................................................
Digital:
Pentax K5- Vivitar 19mm 3.8; FA35mm f2; D-Xenon 100mm macro f2.8; DA50-200mm WR...
Flash:
Yongnuo YN-560; Vivitar 285HV; Cactus V4 triggers...
Film:
Pentax-MX & M50mm f1.4; Spottie & 55mm f1.8; MG & M40mm 2.8...

http://www.flickr.com/photos/daveholmesphotos/

davidstorm

Link Posted 29/03/2013 - 20:57
It's important to cover the eyepiece, the longer the exposure, the more important this gets. The issue is not so much whether the exposure will be out, it's more that you can end up with streaks on the image where light leakage over-exposes parts of it compared to other parts. There is nothing you can do to rectify this in PP.

Regards
David
My Website http://imagesbydavidstorm.foliopic.com

Flickr

Some cameras, some lenses, some bits 'n' bobs

Blythman

Link Posted 29/03/2013 - 21:01
I chuck my black woolly hat over the camera
Alan


PPG
Flickr

dpm

Link Posted 29/03/2013 - 21:36
how much light can actually get past the raised mirror anyway?

davidstorm

Link Posted 29/03/2013 - 21:43
dpm wrote:
how much light can actually get past the raised mirror anyway?

Small amounts, but when you're doing a long exposure this can make a big impact on the final image. A small amount of light falling on the sensor for 2 to 3 minutes for example can be clearly seen as streaks in the image.

Regards
David
My Website http://imagesbydavidstorm.foliopic.com

Flickr

Some cameras, some lenses, some bits 'n' bobs

darkskies

Link Posted 29/03/2013 - 21:56
Exactly as David says. It's critical.

I chuck an old black t-shirt over. It's always in my camera bag.
This space deliberately left blank.

johnboy-22

Link Posted 30/03/2013 - 17:51
I presume if you use live view it will not make any difference
Pentax K5, Kx, DA15 ltd,18-135, 18-55, 50-200, M100 f4 macro, M135 f3.5 A28 F2.5
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