Photos taken by a Pentax camera for tech. discussion - Season 0

[pinholecam]

i think i will too.. watching the sunrise at the lake really makes you feel like you're so lucky to be alive each day

i agree with the OOF bit. the previous sunrise shoot i focused around infinity but lost sharpness in the foreground. this time round i made sure the foreground was sharp, esp since the background has very little detail anyway. at first i was shooting at abt 12mm f/11, hyperfocal 0.65m, 0.35 to infinity in focus. however, as the sky got darker and darker, i was limited by the 30sec shutter speed and had to open up aperture and bump up ISO. that's why the pier photo is a bit OOF towards infinity, and a bit noisy too.

next time i will bring a stopwatch (on ipod touch) and my cable release and go for bulb mode >30s exposures. should solve the focus point dilemma :thumbsup:

Thanks for sharing the technical bits.

 

[alanswan]

This evening's sunset at Lake Michigan. Walked 2km from my dorm but in the end the overcast skies were quite a let-down.

University of Wisconsin?
I was there for the "Kites on Ice" event about 5 years ago... :thumbsup:
The lake hasn't froze solid yet?

 

[darrrrrrrrrr]

University of Wisconsin?
I was there for the "Kites on Ice" event about 5 years ago... :thumbsup:
The lake hasn't froze solid yet?

U of Chicago

tomorrow should be the first day that temperature dips below freezing.. still got a few weeks to go before winter comes.

 

[Fenzi]

Pentax K200D and 35mm macro.

Loving it!

 

[airconvent]

Pentax K200D and 35mm macro.

Loving it!

holly molly! :thumbsup: more so because i used to own the K200D and never did anything like that.
You had a close up filter attached or its a pure cropped 35mm image?

 

[Fenzi]

holly molly! :thumbsup: more so because i used to own the K200D and never did anything like that.
You had a close up filter attached or its a pure cropped 35mm image?

Thank you airconvent
No filter attached. Shots taken with the 35mm lens with minor cropped done.
Here is the orginal image :

 

[maverickh]

K7

 

[maverickh]

K200D

 

[JMLoh]

Hi,

Can't wait for the Dec outing, took my Pentax K20D for a walk after dinner (not a usual practice), come across an accident and took my first of such happening. Only armed with an old manual Tamron 28mm F/2.5. Here is one of the photos:

For more photos, click here

C&C welcome. Thanks for viewing.

 

[istDeS]

some shots of frogs.

some others here.

 

[pinholecam]

K200D

some shots of frogs.

Nice ones both.

 

[otc]

Low cost Macro photography.. Macro photography need not cost a bomb.

Taken with reverse ring with M 28 f2.8 lens.Pentax

Both uncrop images of the lens.

marcus

 

[eselite]

Low cost Macro photography.. Macro photography need not cost a bomb.

Taken with reverse ring with M 28 f2.8 lens.Pentax

Both uncrop images of the lens.

marcus

Wow, marcus, those shots are pretty good, im also following suit, ordered a takumar bayonet 28 f2.8. Im not sure what kind of extension tubes to get, FW told me to get the original one but it's hard to find, my reverse ring is on the way too...

 

[elavan]

I've tried cupping my A70-210 reverse and in macro range, it's almost like a microscope :sweatsm:

 

[otc]

Wow, marcus, those shots are pretty good, im also following suit, ordered a takumar bayonet 28 f2.8. Im not sure what kind of extension tubes to get, FW told me to get the original one but it's hard to find, my reverse ring is on the way too...

Charlie, you can get the PK without A contact for ten over dollars ebay, about 60 mm tubes and when used with 28 mm lens, will gives more than 2x magnification. Set-back is working distance will be extremely near to the subject, may almost touch the subject. Not possible for insects. The reverse ring with 28 mm M pentax lens gives me about 2 to 3 inches of working distance. Only one focal point for that sharp image and mag. To use M mode manual focussing and flash lights.

I've tried cupping my A70-210 reverse and in macro range, it's almost like a microscope :sweatsm:

Mounting a Raynox 250 on the front of lens may provide some magnification for macro. About $100/ raynox lens.. The last outing in sembawang, someone tried my raynox lens.

 

[otc]

Shot this with A200 macro f4, two flash fired, mounted on tripod.

Pictures was cropped.

Better details with this lens, imo.

marcus

 

[seefei]

Shot this with A200 macro f4, two flash fired, mounted on tripod.

Pictures was cropped.

Better details with this lens, imo.

marcus

the images are very sharp and the shadow is soft. is it due to the 2=flash set-up?

 

[otc]

the images are very sharp and the shadow is soft. is it due to the 2=flash set-up?

Yes, Seefei. Sharpness comes with tripod and air is still. The 2 flash light systems helps to lighten the shadows, one mounted on hotshoe and the other one lower to the right ie horizontal position. You may want to follow flowerpot flash with K kirk bracket and seems popular and helps to alleviate hard shadows.

Marcus

 

[JMLoh]

It must be a crime

to keep the "Bokina" (tks, FW) in the cabinet.

To redeem myself, took it out for a walk yesterday.

Here are two more photos.
Bad photos -> my fault

Good photos -> good lens

Thanks for viewing.

 

[Grey Knight]

K200D

the K200d has an ISO of 640?

how'd you do that?