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geoid
veteran


Reged: 18/06/2006
Posts: 1307
Problems with Hot Pixels
      #778943 - 30/03/2009 16:24

Hi. Is there an firmware upgrade for the K200d as well as there has been for the K20? I have problems with the sensor with the K200d. It's just not that good in low light conditions, and the quality of the pictues even in good light is just too patchy. And I'm getting increasingly irritated by Pentax stuff. Have I really bought the Dud of cameras here? Anyone any suggestions. Like what is a good lens for the pentax also? Ta!

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johnriley1uk
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Reged: 08/06/2006
Posts: 521
Re: Problems with Hot Pixels [Re: geoid]
      #779045 - 30/03/2009 22:57

I think you'll need to be a bit more specific for a proper answer as there's little clue here as to what sort of image you are trying to produce.

Pentax lenses are superb for Pentax and Samsung cameras.

--------------------
Best regards

John Riley


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BenchistaModerator
Which Tyler


Reged: 11/08/2000
Posts: 42233
Loc: Everywhere and nowhere, baby
Re: Problems with Hot Pixels [Re: johnriley1uk]
      #779058 - 30/03/2009 23:29

Most Pentax lenses, yes - but the 18-55 kit lens is described in the latest version of AP as "comparatively poor", so if the OP has one of those, it's not a good benchmark for the rest of the range, and well worth considering an upgrade.

--------------------
Nick

www.nbrphoto.com

Light and Shade II - the new blog


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geoid
veteran


Reged: 18/06/2006
Posts: 1307
Re: Problems with Hot Pixels [Re: Benchista]
      #779071 - 31/03/2009 00:07

Hello! Yes, I think I need to branch out with different lenses then. I've only been able to afford 2nd hand ancient A & M class ones ( which are really good for some things, I have a 28MM 100MM & a 50MM, and they are ok for variety). But which "new" lens do you think I should invest in. I've heard the new 50MM are really good, and the wide angle 12-24? Any suggestions will be helpful.

As for specific. I've found that during poor lighting situations, even with ISO at higher levels, there is sometimes a lot of digital smearing, and some micro red dots ( which I assume were hot pixels). And it doesn't make for a great picture. But as above, it's such a tricky thing lighting vs my averageness as a photographer.

Cheers.


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Monobod
'Phantom' of the forum!


Reged: 03/04/2003
Posts: 6878
Loc: Just West of Norwich, Norfolk
Re: Problems with Hot Pixels [Re: geoid]
      #779082 - 31/03/2009 03:11

We would really like to help, but you are not being at all specific about the problem.

Are the images blurred or just a little soft?
Are you taking pictures at high ISO settings in poor light?
If so, is the shutter speed too slow for hand held shots?

We cannot help without better information.

--------------------
David.
-----------------------------------------------
Photos hosted by Flickr.
www.flickr.com/photos/monobod/
-----------------------------------------------
My sharpest lens is a tripod - Chris Palmer.


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johnriley1uk
addict


Reged: 08/06/2006
Posts: 521
Re: Problems with Hot Pixels [Re: geoid]
      #779092 - 31/03/2009 08:39

We're still guessing because we don't know what the subject matter is, or the type of lighting. How do things look on a nice bright day of you take a picture of something like a building? Are they sharp and clear?

As for lenses, the 18-55mm is capable of excellent A3 prints when stopped down, but for an improvement that won't break the bank look at the SMC Pentax-DA 16-45mm f4 which currently at its new low price is a real bargain.

The 12-24mm is a superb lens, but not where you should be starting.

--------------------
Best regards

John Riley


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ojb28
newbie


Reged: 03/03/2009
Posts: 34
Loc: London
Re: Problems with Hot Pixels [Re: johnriley1uk]
      #779200 - 31/03/2009 12:29

Pentax cameras seem not to apply as much noise reducion as others. Personally I would like a little more chroma NR in jpeg mode, but the good thing about this is it gives YOU control. If your K200D is anything like my K10D (it has the same sensor I think) noise is visible at ISO 800 and fairly obvious at ISO 1600 in jpegs. However, if you shoot RAW (as you should for the best quality) I find much better high ISO image quality can be had. I have no hesitations about printing ISO 1600 DNG RAW shots from Adobe ACR up to A3. Give it a try and see what you think. I can't answer for PEF's as I use CS3 and never use that format.

As for lenses, it depends what you shoot, but I found my Tokina 19-35mm ultra-wide gave me a huge creative boost on film for landscape/travel. The 12-24 is the digital equivalent - I just wish I could afford one!


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geoid
veteran


Reged: 18/06/2006
Posts: 1307
Re: Problems with Hot Pixels [Re: ojb28]
      #779305 - 31/03/2009 19:20

Ta for the help. I've found a 2nd hand 16-45 available for £185 so I might try that one. I must say the Mark II 18-55 isn't that bad, but the problem is comparing different Pentax lenses is the cost of buying them and doing this.

As for noise, that generally isn't a problem. The hot pixellation occurs in low or poor light, where I step up the ISO. It doesn't happen on day shots, but I don't find the day shots particularly exciting with the 18-55 either. I think I've not had the experience of a really good pentax lens, and am finding it a bit boring to be honest.

I'm sure it's more to do with the slow lens also. It isn't a particularly fast one is it? And it's very noisy to use, and it's focus is abysmal at times. I hope the 16-45 is better than this one eh?

Anyone care to comment on the differences? Cheers, Gary.


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Monobod
'Phantom' of the forum!


Reged: 03/04/2003
Posts: 6878
Loc: Just West of Norwich, Norfolk
Re: Problems with Hot Pixels [Re: geoid]
      #779319 - 31/03/2009 20:34

If you can find one s/h the manual focus 70-210 f/4 one touch zoom is a cracking lens. It still triggers the focus indicator in the viewfinder so is easy to use. Image quality is really great.

--------------------
David.
-----------------------------------------------
Photos hosted by Flickr.
www.flickr.com/photos/monobod/
-----------------------------------------------
My sharpest lens is a tripod - Chris Palmer.


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geoid
veteran


Reged: 18/06/2006
Posts: 1307
Re: Problems with Hot Pixels [Re: Monobod]
      #779729 - 01/04/2009 22:11

Peace has been restored to my Pentax life. I bought a 2nd hand 17-70 Sigma today. Which is a very nice replacement for my kit lens ( it cost me £70). So I am happy.

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Monobod
'Phantom' of the forum!


Reged: 03/04/2003
Posts: 6878
Loc: Just West of Norwich, Norfolk
Re: Problems with Hot Pixels [Re: geoid]
      #779755 - 02/04/2009 01:03

Quote:

Peace has been restored to my Pentax life. I bought a 2nd hand 17-70 Sigma today. Which is a very nice replacement for my kit lens ( it cost me £70). So I am happy.




Yes, I have this also and it is very good. It also has the most useable zoom range, so stays on the camera most of the time.

--------------------
David.
-----------------------------------------------
Photos hosted by Flickr.
www.flickr.com/photos/monobod/
-----------------------------------------------
My sharpest lens is a tripod - Chris Palmer.


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El Sid
Going potty


Reged: 14/04/2003
Posts: 10755
Loc: Sussex-by-the-Sea
Re: Problems with Hot Pixels [Re: geoid]
      #779775 - 02/04/2009 09:10

Quote:

I bought a 2nd hand 17-70 Sigma today. Which is a very nice replacement for my kit lens ( it cost me £70). So I am happy.




My general purpose lens as well - albeit in Canon fit. Produces very good quality for a modestly priced lens. At £70 I reckon you got a bit of a bargain!

--------------------
Nigel

Completely BSRIPN

ElSid Gallery

Terrorist?............or potential photographer?.......

There are no people more opressed than those who willingly opress themselves


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Done&rundleCams
Senior Member


Reged: 20/12/2001
Posts: 18124
Loc: Vancouver, BC
Re: Problems with Hot Pixels [Re: geoid]
      #780018 - 03/04/2009 06:16

Hi Gary,

Glad to see you (hopefully) got your Hot Pixel situation dealt with and
there has not been any firmware upgrades for the K200D -- of which I
have two(2) . And, FWIW, I have yet to have any sensor problems
with (any of) my K200D's but as for my original (4+ years/88K shots) DSLR,
the Pentax IST*Ds ...... take a peek below:








Cheers,

Jack

--------------------
Life is a Photo-op

(UPDATED NOV 16th)MY BLOG: www.nakedmanonawire.blogspot.com


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ojb28
newbie


Reged: 03/03/2009
Posts: 34
Loc: London
Re: Problems with Hot Pixels [Re: Done&rundleCams]
      #780060 - 03/04/2009 10:13

Crikey! That's what I call a compost heap!!

I like the picture though, very post modern. It wouldn't look out of place in a modern art gallery with a title suggesting nuclear apocalypse, with the 'emoticon' an ironic reference... perhaps you should enter it somewhere??


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Monobod
'Phantom' of the forum!


Reged: 03/04/2003
Posts: 6878
Loc: Just West of Norwich, Norfolk
Re: Problems with Hot Pixels [Re: ojb28]
      #780206 - 03/04/2009 17:38

Time for a K20D Jack! (or a G10).

What did you say, death to the traitor!

--------------------
David.
-----------------------------------------------
Photos hosted by Flickr.
www.flickr.com/photos/monobod/
-----------------------------------------------
My sharpest lens is a tripod - Chris Palmer.


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geoid
veteran


Reged: 18/06/2006
Posts: 1307
Re: Problems with Hot Pixels [Re: Done&rundleCams]
      #780300 - 03/04/2009 20:20

Hi Jack! Nice to hear from you.Yes my moan is over. I think I need my eyes testing. The piccy you display is staggering, you might as well put bleach on that one. It might come up a treat! But you always used that camera everywhere.

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johnriley1uk
addict


Reged: 08/06/2006
Posts: 521
Re: Problems with Hot Pixels [Re: geoid]
      #780350 - 03/04/2009 21:54

It's amazing there's even a small bird stuck to the sensor and some red Letraset....some photographers do shoot in bad conditions!

--------------------
Best regards

John Riley


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Monobod
'Phantom' of the forum!


Reged: 03/04/2003
Posts: 6878
Loc: Just West of Norwich, Norfolk
Re: Problems with Hot Pixels [Re: johnriley1uk]
      #780399 - 04/04/2009 00:06

And that was just the viewfinder!

--------------------
David.
-----------------------------------------------
Photos hosted by Flickr.
www.flickr.com/photos/monobod/
-----------------------------------------------
My sharpest lens is a tripod - Chris Palmer.


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Done&rundleCams
Senior Member


Reged: 20/12/2001
Posts: 18124
Loc: Vancouver, BC
Re: Problems with Hot Pixels [Re: johnriley1uk]
      #780561 - 04/04/2009 19:25

Quote:

It's amazing there's even a small bird stuck to the sensor and some red Letraset....some photographers do shoot in bad conditions!






Hi John,

Oh you know us wannabe PJ's .... anything to get the picture

Cheers,

Jack

--------------------
Life is a Photo-op

(UPDATED NOV 16th)MY BLOG: www.nakedmanonawire.blogspot.com


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Done&rundleCams
Senior Member


Reged: 20/12/2001
Posts: 18124
Loc: Vancouver, BC
Re: Problems with Hot Pixels //ojb28 [Re: ojb28]
      #780571 - 04/04/2009 19:35

Quote:

very post modern. It wouldn't look out of place in a modern art gallery with a title suggesting nuclear apocalypse, with the 'emoticon' an ironic reference




Hi OJB,

Thanks very much and I liked your idea of entering the photo somewhere and so
I googled part of your post -- see above -- and received some very interesting
repsonses .... ...See Here for Google Results ..................

Cheers,

Jack

--------------------
Life is a Photo-op

(UPDATED NOV 16th)MY BLOG: www.nakedmanonawire.blogspot.com


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