Question about Pentax Optio S40 Digital Camera

2 Answers

Optio S40 - underexposure problems

Im the owner of an Optio S40 and have had this camera for a couple of months. There is one problem I have found (besides the annoying flash recharge / blank screen), and that is all my photos are quite dark and under exposed. This is when I am using the flash indoors, and even when I use the camera outside. I am wondering if there are any fellow Optio S40 users out there that have experienced this? I also have the "soft upper left hand corner" problem. Has anyone used either of these issues as a basis for getting the camera fixed under warranty? As I understand, steves-digicams.com managed to get another S40 which was much better performance.

Posted by Anonymous on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 542 Answers
Re: optio S40 - underexposure problems

In order to avoid burning out the highlights, Pentax metering system is adjusted to give texture in the highlights - which can have an "underexposure effect" in high contrast situations. It also happens indoors because it's quite common that indoor walls are bright so in order to preserve their texture - the exposure is tuned down. The reason for this is.. * Digital sensors has limited dynamic range / narrow exposure latitude, when compared to print film. * Burned out highlights looks awful, they often has a colour cast - like a purple/violet aura around the highlight. With printfilm, and even with slides (to some extent), you can overexpose parts of the image. They don't look bad, just overbright. With digital, you can't. You don't have this margin. * If you burn out a highlight, you loose it. If you darken a highlight in editing software (Photoshop and the like), you'll discover that there's no information left in the highlight. It's blank, empty. (this is beacuse of the low dynamic range). If you want to have it differently (if you don't mind burning out the highlights), then select spot metering and use this to measure the exposure of the main subject within the image. Do note that if the main subject is dark, the camera will overexpose (making it grey) - and if the subject is bright, the camera will underexpose (making it grey). This is because all metering systems are adjusted after a standard which says that the subject reflects 18% of the light, which is a medium grey tone. However, it's easy to fix the exposure from your camera. Just brighten low and mid tones (without touching the higlight) in image editing software. If you use the print service of a photo lab, they'll adjust the image for you. (they actually does it with printfilm all the time...). I've found "AutoEqualisation" in Corel PhotoPaint working OK, there's a similar function in the ACD software that came with your camera. (ACD FotoCanvas).

Posted on Sep 08, 2005

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 542 Answers
Re: optio S40 - underexposure problems

The underexposed pictures are annoying but it can be easily solved. Just use the 4-way pad and add positive EV compensation. Then decided what works for you (0.3, 0.7 or 1.0, etc...)

Posted on Sep 08, 2005

Add Your Answer

0 characters

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...
3 Points

Related Questions:

1 Answer

I get a memory card error message on my Pentax Optio S40. I bought two new memory cards. Sandisk 512 mb. I get the same message on them. I tried formating the card on my computer. When I pit it in my...


Camera cards are never to be formatted on the computer....only in the camera. "card error" usually always means you need to format the card in the camera. This will erase it so download any pics you want to save first.

Jun 02, 2011 | Pentax Optio S40 Digital Camera

1 Answer

Memory Card Error on 4 Gb CF cards (80x) for Pentax Optio 430


The maximum supported memory for Pentax Optio 430 is 256mb and for Pentax Optio 430 RS is 512mb.

Check this site for more information.

Optio 430
http://www.upgradecomputermemory.com/ram.cfm//memory/P/Pentax/Pentax-Optio-430/

Optio 430 RS
http://www.upgradecomputermemory.com/ram.cfm/memory/P/Pentax/Pentax-Optio-430RS/

Jun 10, 2009 | Pentax Optio 430RS Digital Camera

1 Answer

Pentax digital Optio S40 camera instruction manual.


you can try contact pentax customer service at that link
http://www.pentax.jp/english/support/repair_entry-america.html

Oct 31, 2008 | Pentax Optio E10 Digital Camera

1 Answer

Can't get my camera to turn on


Try rechargable batteries or Duracell. Other batteries may not have sufficient charge.

Aug 24, 2006 | Pentax Optio S40 Digital Camera

1 Answer

Problems with Optio S40 SD card


Good day,

This is a common problem that many people experience with their SD Cards when they are "Locked".
It is normally an easy fix and you can follow a method that I posted on my tips here:

http://www.fixya.com/support/r7042428-sd_card_write_protect

Please feel free to let me know if this was helpful!

Regards

Sep 08, 2005 | Pentax Optio S40 Digital Camera

2 Answers

Bug in the Optio S40?


Somewhere I read to be careful using cardreaders, using your memory card in different camera's and managing your card via the computer. Appearantly all of these can corrupt your card. The advice is to hook your camera directly up to your computer to transfer images and perhaps it is wise to erase images through the camera's menu instead of via the transfer program of the computer. Try formatting the card using the camera's menu and see if the problem persists.

Sep 08, 2005 | Pentax Optio S40 Digital Camera

1 Answer

Optio S40 Battery issues


I've had this problem. The S40 is *really* picky about good connections for the contacts to the batteries. Make sure you use a facial tissue or something similar to wipe off the ends of the batteries to take off as much finger oil or what have you. Then when the batteries are inserted into the camera, spin them around a couple of times to ensure that contacts have a good connection then wipe the tops of the batteries again and close the battery cover. I've had the same problem with NiMH batteries that I've had no problems with *ever* in other digital cameras and game boys. It probably has something to do with the small prongs that pentax uses on the battery contacts.

Sep 08, 2005 | Pentax Optio S40 Digital Camera

Not finding what you are looking for?
Pentax Optio S40 Digital Camera Logo

42 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pentax Digital Cameras Experts

kakima

Level 3 Expert

92721 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

halotheracer
halotheracer

Level 2 Expert

68 Answers

Are you a Pentax Digital Camera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...