The Photography Questions Thread - Page 30 - JeepForum.com
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post #436 of 596 Old 02-27-2009, 08:27 AM
sparkchaser
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I just thought of something. The lens I was using has a UV filter on it. Could a UV filter adversely affect low light shots?


"Sandstorms inflict damage of about $540 million per year, and losses of crops and forests due to acid rain amount to about $730 million per year. More serious are the $6 billion costs of the "green wall" of trees being built to shield Beijing against sand and dust, and the $7 billion per year of losses created by pest species. We enter the zone of impressive numbers when we consider the onetime cost of the 1996 floods ($27 billion, but still cheaper than the 1998 floods), the annual direct losses due to desertification ($42 billion), and the annual losses due to water and air pollution ($54 billion). The combination of the latter two items alone costs China the equivalent of 14% of its GDP each year." - Jared Diamond, Collapse: How Societies Choose to Fail or Succeed
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post #437 of 596 Old 02-27-2009, 06:02 PM
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I just thought of something. The lens I was using has a UV filter on it. Could a UV filter adversely affect low light shots?
Not so much.

Polarizer, yes; UV not to my knowledge.

Jim

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"When the last Blackhawk helicopter goes to the boneyard, it will be on a sling under a Huey." - Every Huey pilot that lived through it.

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post #438 of 596 Old 02-27-2009, 07:19 PM
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quit touching the lense
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post #439 of 596 Old 02-27-2009, 07:43 PM
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Could anyone school me on taking HDR shots? I use a Canon Digi. Rebel XTi and have Photoshop Elements if needed....

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post #440 of 596 Old 02-27-2009, 07:54 PM
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http://en.wikipedia.org/wiki/High_dynamic_range_imaging

http://photography-on-the.net/forum/...t=HDR+tutorial

-James
Got to love an ORVIS guy...
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post #441 of 596 Old 02-27-2009, 08:13 PM
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You guys might get some shots of the moon tonight on a horizon, if you have one, It's a crescent with a planet close by. My shots didn't turn out.

Throw the bums out!


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post #442 of 596 Old 02-28-2009, 07:21 PM
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Could anyone school me on taking HDR shots? I use a Canon Digi. Rebel XTi and have Photoshop Elements if needed....

I'll give you the basics.

1. Put your camera on a tripod.
2. Put your camera in manual everything mode. Adjust focus, etc. the way you want.
3. Shoot a purposefully underexposed image (or overexposed, but for the sake of simplicity here, we'll go with underexposed). Check your histogram. If you have highlights that are still stacking up on the right side of your histogram, delete the image and go a stop or two more underexposed.
4. Once you get an image that includes all your highlights (no stacking on the right side of your histogram), use your SHUTTER SPEED ONLY to adjust one (or two or any number) stop faster. Shoot this photo, then repeat. It is very important to always ajust your shutter speed in the same increments - so if you moved one stop the first time, move one stop again.
5. Keep shooting shots in this increment until you have no darks stacking on the LEFT side of your histogram. This may be two shots or 10 - it just depends on the scene.
6. Now you need an HDR converter. I don't know if PS Elements has it or not - probably not. And PS really isn't the best HDR converter out there anyway. I suggest Photomatix - you can download a free trial to try it out - it just puts watermarks on your photos.

I won't go into how to convert it in the software because it will depend on what software you have. But basically, all of them take the series of shots and combines them all together to get the complete tonal range. The software does all of that for you, but the end result is ugly. At that point, you do "Tone Mapping" which allows you to actually SEE all the tonal ranges that you've worked so diligently to capture. Any software you use should have a "help" or instructions on how to do this.

And good luck.

I'm keeping this one until I die, or it kills me.
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post #443 of 596 Old 04-12-2009, 11:31 AM Thread Starter
AlTheKillerr
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what do you guys think of this lens? im looking for a really nice macro lens

http://www.amazon.com/exec/obidos/tg...X0DER&v=glance

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post #444 of 596 Old 04-12-2009, 11:56 AM
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what do you guys think of this lens? im looking for a really nice macro lens

http://www.amazon.com/exec/obidos/tg...X0DER&v=glance
Hi Colton.

I don't have that particular lens (I've the Tammy 90mm 2.8) but there's a thread over on the Nikon Cafe:

http://www.nikoncafe.com/vforums/sho...ht=Sigma+150mm

There are some example shots posted.

HTH

Jim

"Basically, I'm for anything that gets you through the night - be it prayer, tranquilizers or a bottle of Jack Daniels.” - Frank Sinatra

"When the last Blackhawk helicopter goes to the boneyard, it will be on a sling under a Huey." - Every Huey pilot that lived through it.

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post #445 of 596 Old 04-12-2009, 12:46 PM Thread Starter
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Originally Posted by FmrVette View Post
Hi Colton.

I don't have that particular lens (I've the Tammy 90mm 2.8) but there's a thread over on the Nikon Cafe:

http://www.nikoncafe.com/vforums/sho...ht=Sigma+150mm

There are some example shots posted.

HTH
awesome thankyou! with B&H selling it for 619 i may have to get it and put my jeep build on hold. ugh i dont know what to do!

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post #446 of 596 Old 04-12-2009, 06:09 PM
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awesome thankyou! with B&H selling it for 619 i may have to get it and put my jeep build on hold. ugh i dont know what to do!
Upgrade the Jeep. The lens should be cheaper in six months as the recession eases and the dollar/yen ratio stabilizes. Lens, body, and flash prices seem to be all over the chart lately.

Although that appears to be a very sweet lens. Now, if you could find one in 9+ used condition...


Jim

"Basically, I'm for anything that gets you through the night - be it prayer, tranquilizers or a bottle of Jack Daniels.” - Frank Sinatra

"When the last Blackhawk helicopter goes to the boneyard, it will be on a sling under a Huey." - Every Huey pilot that lived through it.

'95 YJ, '00 XJ, '06 TJ, (Current:) '08 XK
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post #447 of 596 Old 04-12-2009, 07:59 PM Thread Starter
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yeah i was thinking about it today while moving 9 cubic yards of mulch and i decided to go with the jeep for now

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post #448 of 596 Old 04-13-2009, 06:57 PM
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Hey guys... i got my camera today! it isn't quite as high class as some of yours, as i got it from a parents friend for my photog class next fall. It's a Nikkormat (retrooooo) with a canon 50mm lens and a nikon 28mm lens. any info for a photo newbie?

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This has got to be the first thread where a free gear upgrade was done. At the start, the OP had 3.07 gears, now he has 4.10 gears. And it didn't cost him a dime.
Show that to your dad !!
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post #449 of 596 Old 04-13-2009, 07:15 PM
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what do you guys think of this lens? im looking for a really nice macro lens

http://www.amazon.com/exec/obidos/tg...X0DER&v=glance
I've heard lots of good things about it. But, when I was researching macro lenses, what I learned was, it's hard to buy a bad one. They're all good - at least the true 1:1 macros. You can't go wrong with the Nikon 105mm, Canon 100mm? (or whatever their's is), Tamron 90mm, Tokina 100mm (the one I bought), Sigma 105mm, or Sigma 150mm.

The extra length of the 150mm would be nice unless you plan to ever use it for portraits or anything like that.

I'm keeping this one until I die, or it kills me.
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post #450 of 596 Old 04-13-2009, 07:17 PM
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Hey guys... i got my camera today! it isn't quite as high class as some of yours, as i got it from a parents friend for my photog class next fall. It's a Nikkormat (retrooooo) with a canon 50mm lens and a nikon 28mm lens. any info for a photo newbie?

Put it in manual mode and shoot away. Study all about the relationship of aperture size, shutter speed, and ISO rating. The more you shoot, the more you'll learn. It's a lot of fun.

How are you getting that Canon lens to fit on it?

I'm keeping this one until I die, or it kills me.
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