Fun with Filters - Post Your Pictures Taken with Any Filters with Pentax Cameras Here

[istDeS]

OK, my first attempt on IR, don't know whether I got it right. DS & FA 28-70 f/4.

 

[night86mare]

IR shooting is a little more deliberate, so a lazy Saturday would be good. Drinks with fellow Pentaxians would be super and it would be a good time to run through how to use the IR filter.

Off topic, I was scouring eBay and there are some China sellers selling IR filters at about US$17 including shipping (52mm). The Hoya R72 cuts off at 720nm wavelength. The online offerings come in 850nm and 950nm. Just ordered one to test. :bsmilie:

Yar, I'll definitely organise a Sat morning one in Sep.

Hopefully can get everything settled for my studies before then, so can shoot without any care. :bsmilie:

Ah, the cutting off terminology not too sure, but allows more light through or less? If less then you'll get less colour, more means get more colour, but a blend of normal colour and IR colour.

OK, my first attempt on IR, don't know whether I got it right. DS & FA 28-70 f/4.

Looks very good! WB is spot on.

A few more stops of exposure would be good though, but as for all photography underexposure is easier to correct than over; can do a lot of other things based on personal preference, like, channel swapping (channel mixer, blue channel blue 0 red 100, red channel blue 100 red 0, green channel green 0, red and blue add up to 100, mix on taste). Shadows/Highlights in IR also very forgiving, and since the scene is surreal in the first place doesn't really matter if there is haloing, so long as not too visible.

 

[istDeS]

Thanks night86mare. Did a custom WB with a WB filter.

I think to do more things with the pic, i need to brush up my PS first.

 

[night86mare]

Thanks night86mare. Did a custom WB with a WB filter.

I think to do more things with the pic, i need to brush up my PS first.

That's interesting, never heard of that before, usually just use green grass in sun. :think:

Maybe the K10D users can try that too.

 

[alanswan]

OK, my first attempt on IR, don't know whether I got it right. DS & FA 28-70 f/4.

Well... It definitely looks better and more correct than my first 1..2...3...4 attempts... :cry:

 

[creampuff]

OK, my first attempt on IR, don't know whether I got it right. DS & FA 28-70 f/4.

Very nice! Must show how you do it. WB looks good.

 

[istDeS]

Very nice! Must show how you do it. WB looks good.

For WB, I used a WB filter to custom instead of the green grass mentioned by night86mare. The shooting part is quite standard. The Raw files, I opened it in pentax photo laboratory and select the white clouds for the grey point setting. Used the PSE5 to run a auto Level after that.

 

[airconvent]

mmm.you mentioned WB alot. Can't we use auto WB? If use manual, I assume you used the grass for reference? Can we use a coffee filter instead?
Also curious, the filter I noticed from the shop is black in colour, can you actually see anything in the view finder? Getting intrigued..
cheers

 

[night86mare]

mmm.you mentioned WB alot. Can't we use auto WB? If use manual, I assume you used the grass for reference? Can we use a coffee filter instead?
Also curious, the filter I noticed from the shop is black in colour, can you actually see anything in the view finder? Getting intrigued..
cheers

Cannot, for some reason the information when using manual - rendering a very very reddish colour - some of it will be lost and unretrievable. So if you want the tones/textures that istDES is getting, you would need a custom WB, don't have to be spot on, can correct in RAW, but close enough is better than using Auto. =)

 

[istDeS]

Also curious, the filter I noticed from the shop is black in colour, can you actually see anything in the view finder? Getting intrigued..
cheers

You cannot see anything in the viewfinder with the filter on. That's why need to compose first before screwing on the the filter.

 

[creampuff]

Some IR shots with the K100D and kit lens.
http://forums.clubsnap.com/showpost.php?p=3339745&postcount=773
http://forums.clubsnap.com/showpost.php?p=3339752&postcount=774

 

[night86mare]

Some IR shots with the K100D and kit lens.
http://forums.clubsnap.com/showpost.php?p=3339745&postcount=773
http://forums.clubsnap.com/showpost.php?p=3339752&postcount=774

hrm i somehow missed this thread,
but very nice! =) love the composition with water

here's something i took yesterday

bad weather for ir though, so gloomy feel

 

[Snowywolf]

here's something i took yesterday

bad weather for ir though, so gloomy feel

very nice composition..
if only the clouds can hang lower..:bsmilie:

so what kept u up in the middle of the nite yesterday to have dropped me a text in the middle of the night?:sticktong

 

[night86mare]

very nice composition..
if only the clouds can hang lower..:bsmilie:

so what kept u up in the middle of the nite yesterday to have dropped me a text in the middle of the night?:sticktong

hahahaha
i always sleep at 2 am or so these days
i think subconscious adjustment to london timing lol lol
no la, have to talk to friends before i fly, might not get to talk to them next time
then that day i realised the next day was the ir exhibition
speaking of which i should go and check it out tomorrow instead of procrastinating further

Punggol

 

[liionel]

hi all, 1 quick question, whats CPL? :|

and what effect does it give?

 

[istDeS]

hi all, 1 quick question, whats CPL? :|

and what effect does it give?

CPL - Circular Polarizing filters, can be used to block out any unwanted reflection in glass, water etc. You can also use a polarizer to control the colour of the sky, ranging from light blue to dark blue/grey.

 

[Snowywolf]

snowywolf and leopard lacewing (bobby mun)
taken with a mod canon cam..
the exhibition is pretty cool!
go and have a lookie..

INFRARED CITY - Exhibition @ National Library (Bugis) :thumbsup:1st to 16th Sept 2007 ONLY

 

[night86mare]

sharing a shot from punggol, it's been a while

 

[creampuff]

sharing a shot from punggol, it's been a while

Great shot. The bike balances the composition very well. Nice retro racer, especially the bullhorn handlebars. :thumbsup:

 

[night86mare]

Great shot. The bike balances the composition very well. Nice retro racer, especially the bullhorn handlebars. :thumbsup:

thanks dennis! =)