View Full Version : What lense can produce these images
Sleeper97
10-12-2006, 07:28 PM
I currently own a Canon Rebel XTI w/ kit lense.
I am looking into purchasing a Tamron 17-50mm or Sigma 18-50mm.
My interest is to take pictures of cars such as the ones i have attached below. Can the Tamron 17-50mm or Sigma produce these images?
I am looking to take pictures during night time conditions as well.
http://img.photobucket.com/albums/v421/Integraxnyc/Cars/S2k1.jpg
http://img.photobucket.com/albums/v421/Integraxnyc/Cars/S2k2.jpg
http://img.photobucket.com/albums/v421/Integraxnyc/Cars/S2k3.jpg
http://img.photobucket.com/albums/v421/Integraxnyc/Cars/S2k4.jpg
http://img.photobucket.com/albums/v421/Integraxnyc/Cars/S2k6.jpg
noyjimi
10-12-2006, 07:34 PM
I'm guessing that lens had 3 legs under it.
Bluedog
10-12-2006, 07:36 PM
Well you do realize that post processing has a lot to do in the image results.
DonSchap
10-12-2006, 07:38 PM
The f/2.8's will usually provide a decent and quick night-shot... but, the DOF at that aperture is probably going to look a lot different than what you have depicted.
At f/8 or f/16, ISO 100, and some serious tripod time, I do believe you can replicate your lighting... and the noise quality. Remember, 30-seconds is usually the longest the camera shutter will stay open without help, then it is "Bulb" and a handheld release.
Sleeper97
10-12-2006, 07:40 PM
Well you do realize that post processing has a lot to do in the image results.
Considering there was definitely the use of a tripod. Are these pictures able to be produced without having to digitally enhancing the photos with photoshop?
RichNY
10-12-2006, 07:53 PM
Considering there was definitely the use of a tripod. Are these pictures able to be produced without having to digitally enhancing the photos with photoshop?
No. If they were this photographer wouldn't have worked them over in Photoshop like he did.
Just to explain some of the OP's comments if you are new to this:
How we knew that this was a tripod shot, etc.
With low light you've got two choices- fast shutter speed with large aperature (like 2.8 or lower) or a slower shutter speed with a longer exposure time.
Large aperatures give you a shallow depth of field (the background gets blurry) and this was not the case in these pictures. So that means that the exposure time was longer, and a longer exposure time that isn't blurry from shaking in the photographer's hands tells us that he had it mounted on a tripod.
Aside from just looking at the photo you can tell it was worked over in Photoshop v. some other program by examining the Exif data of the picture. Unfortunately, that is all that the Exif tells us as the focal length, Aperature, and Shutter speed values are not shown.
But, other than all the above, the lens you are questioning can take this type of picture provide you do the same PP work to your photos as this photographer did.
Bluedog
10-12-2006, 07:58 PM
To an extent but just about anytime you downsize images for web posting your going to have to add some sharpening to boost the details back up.
You could take those type shots with the kit lens, if you use it correctly + post processing.
Sleeper97
10-12-2006, 08:02 PM
Thanks for the explanation. I am actually very new to photography with digital SLR's. I am also wondering if these pictures can be replicated without a tripod and just having it set with a larger aperature and a higher iso possibly 400 or 800 iso. The background will be blurry due to the larger aperature but would the car in the picture come out without being blurry due to the camera being held by hand and not a tripod?
Bluedog
10-12-2006, 08:38 PM
Upping the ISO above 400 your going to introduce noise but very manageable even pushed to ISO 1600 using the correct exposure and a noise reduction application.
A good sturdy tripod will give the sharpest results, with Image Stabilization not far behind but at a cost with the lens. With handheld you need be around 1/30 second at the slowest as well as a very steady hand.
RichNY
10-12-2006, 09:33 PM
Thanks for the explanation. I am actually very new to photography with digital SLR's. I am also wondering if these pictures can be replicated without a tripod and just having it set with a larger aperature and a higher iso possibly 400 or 800 iso. The background will be blurry due to the larger aperature but would the car in the picture come out without being blurry due to the camera being held by hand and not a tripod?
With your kit lens you should be able to determine the answer to your question. Go try to take a photo with the kit lens with the ISO upped to 1600, Aperature priority set as to the smallest f-stop you can set, and see what shutter speed the camera tells you that you would need to shoot at. Because you'll probably be shooting at f/5.6 (or lower if you are using a shorter focal length) you will most likely get a shutter speed value less than 1/60 of a second.
When you get the shutter speed you can then compare your f stop to the f/2.8 of the new lens and know that you can double your shutter speed for each f/stop between what your camera tells you and f/2.8. If you come in quicker than 1/60th of a second you should be ok hand held. If you're over but not by too much then you can try a monopod, if you're way over you're going to need a tripod.
Is there any reason you wouldn't want to carry a tripod for these types of shots? It will make a major difference in your photo and Photoshop isn't going to make a blurry picture clear.
Sleeper97
10-12-2006, 09:43 PM
Is there any reason you wouldn't want to carry a tripod for these types of shots? It will make a major difference in your photo and Photoshop isn't going to make a blurry picture clear.
I do intend on definitely using a tripod but i was wondering what would be the most ideal settings for taking the same picture without a tripod, in the event i am in similar conditions and do not have a tripod on hand.
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