junousia

Joined: 15th September 2010

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junousia
Thanks gays

Scores were 2-2. I wish I had old CRT-monitor to use. They waren't so sensitive on wieving anle and also easier to calibrate.

Have a nice summer.

Comment by junousia posted on Old barn (Converting to sepia) at 24/07/2011 - 11:29

junousia
Larry (Bobbinalorry) propose to try sepia and I made two lightly different conversions, but I can't say which one is better. It depends on viewing angle how they look on my laptop's display. Here are both conversions:
First one:
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and the second one (slightly lighter):
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I'd like to hear your comment?

Comment by junousia posted on Old barn (Converting to sepia) at 22/07/2011 - 16:11

junousia
Thanks gays

My lens is like that:
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And the older one:
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Anyway, I have to make new test and use smaller aperture (e.g.F11).

Comment by junousia posted on New and old kit objective at 01/07/2011 - 20:53

junousia
BW.

There was review on dbreview.com
http://www.dpreview.com/lensreviews/pentax_18-55_3p5-5p6_p15/page3.asp

That wasen't exactly the same lens as my is, but quite close:

Reviewed lens: SMC Pentax-DA 18-55mm 1:3.5-5.6 AL
My lens: SMC Pentax-DAL 18-55 mm 1:3.5-5.6 AL

Review comment:
'Soft Focus Macro' at 55mm
This lens's only slight Achilles’ heel in terms of image quality is a distinct softness wide open at 55mm, with the lens set to shorter focus distances. Technically this is due to under-correction for spherical aberration, which results in a characteristic soft-focus, slightly 'dreamy' feel to the images, with highlights ‘smearing’ into shadows. It's not unusual to see this kind of effect in a lens of this type at close focus distances ...

Comment by junousia posted on New and old kit objective at 30/06/2011 - 20:31

junousia
Yes, yor are right. I notised also that on pic. 4 the focus a little bit off.

I know that the test was "quick and dirty" test, but sometimes man take close up photos also that way.

Anyway, thatks for your comment. I neet to do more testing.

Comment by junousia posted on New and old kit objective at 27/06/2011 - 10:20

junousia
I tested my K-x's kit objective DAL 18-55 and older Pentax F 35-80mm objective which game with Pentax MZ-50. Older seems to be better on close-ups (manual focused), scharper pictures.

Comparison photos (Pentax F 35-80 photos are croppet to same size as DAL 18-55 pictures):

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Picture 1. New DAL 18-55


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Picture 2. Old F 35-55

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Picture 3. New DAL 18-55

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Picture 4. Old F 35-55

Comment by junousia posted on New and old kit objective at 23/06/2011 - 19:35

junousia
I borrowed that La Crosse charger from my colleque. My own is GP's quick charger which charges also each battery independently. I got GP carher when I bought GP ReCyko NiMH cells, but K-x dosen't work with ReCyko at all.

I know that La Crosse/Technoline or Maha Powerex are the best in its class. La Crosse suits better for Eneloops than Hama
http://www.fatwallet.com/forums/deal-discussion/881250/

Comment by junousia posted on EXIF datas / Battery at 20/06/2011 - 17:23

junousia
You might be thinking, that why on earth I ask these information. I have had some problems with K-x and NiMH batteries https://www.pentaxuser.com/forum/topic/k-x-nimh-battery-problem-24466

and I'd like to know is the problem K-x itself or the set of batteries and charger what I use (Sanyo Eneloops + GP charcer).

Comment by junousia posted on EXIF datas / Battery at 20/06/2011 - 06:30

junousia
Additional informations

I found one EXIF online tool on the net, http://regex.info/exif.cgi

It gives quite good informations, but there seems to be one bug. Battery voltage is not calculated correctly, because tool gives too high value with NiMH-batteries, voltage scaling is wrong.

New Lithium batteries:
Body Battery State Close to Full
Body Battery Voltage 1 7,17 V
Body Battery Voltage 2 6,35 V

Full NiMH batteries: Battery is green:
Body Battery State Close to Full
Body Battery Voltage 1 6,32 V
Body Battery Voltage 2 5,81 V

NiMH batteries: Battery indicator is green, but sometimes goes to orange
Body Battery State Running low
Body Battery Voltage 1 6,05 V
Body Battery Voltage 2 5,58 V

A/D-converters maximum value is FF-Hex (desimal 255) and if we don't know how the scaling is made, we can't convert hexadesimal values to voltage.

With Lithium battries voltages are 4 x 1,5V = 6,0 V (nominal) and
with NiMH-batteries 4 x 1,4V = 4,8 V (nominal).

Typically fully loaded NiMH batteris (Sanyo Eneloops) gives about 1,3V..1,4V / cell => 5,2V ...5,6V.

Comment by junousia posted on EXIF datas / Battery at 19/06/2011 - 14:38

junousia
I updated PhotoMe 0.79R17 to Beta version 0.8B2, but Beta version show battery datas only as binary datas (hexadesimal):
00000000 22 30 02 5D 02 2E 00 00 00 00 02 70 02 2B "0.].......p.+

If you convert hexadesimals to desimal, then
5D (Hexadesimal) = 93 (desimal)
2E = 46

So I have to go back to PhotoMe version 0.79R17.

Comment by junousia posted on EXIF datas / Battery at 19/06/2011 - 09:37

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