Posts Tagged ‘body’
Here’s a slow motion video showing a closeup look at the human eye, our amazing biological lens (and sensor). You might be surprised at how mechanical its movements are and how fluid the iris is. Another crazy fact is that we’re continually relying on “image stabilization” to see things clearly:
The visual system in the brain is too slow to process information if the images are slipping across the retina at more than a few degrees per second. Thus, for humans to be able to see while moving, the brain must compensate for the motion of the head by turning the eyes. [#]
To see a quick demonstration of this fact, try the following experiment: hold your hand up, about one foot in front of your nose. Keep your head still, and shake your hand from side to side, slowly at first, and then faster and faster. At first you will be able to see your fingers quite clearly. But as the frequency of shaking passes about 1 Hz, the fingers will become a blur. Now, keep your hand still, and shake your head. No matter how fast you shake your head, the image of your fingers remains clear. This demonstrates that the brain can move the eyes opposite to head motion much better than it can follow, or pursue, a hand movement. When your pursuit system fails to keep up with the moving hand, images slip on the retina and you see a blurred hand. [#]
Like with cameras, our built-in image stabilization can deal with head shake but not motion blur.
It’s a pretty common question: if you had to choose, would you rather have a top-of-the-line DSLR with a cheap lens or an entry-level body with pro glass? Kai of DigitalRev attempts to answer the question through a hands on experiment in this humorous and educational video.
His conclusion is that unless you need to specific high end features of pro bodies (e.g. full frame sensor, high ISO performance, fast focus and burst shooting), then you’re probably better off going with a cheaper camera and more expensive lenses. Lenses hold their value much better than camera bodies, and there isn’t too big of a difference in image quality these days between entry level and pro DSLRs — especially when using high quality glass.
Here’s really random/strange/stupid idea inspired by a comment left yesterday, but have you heard of anyone “printing” a photograph onto their skin using a negative under sunlight? Seems like it would produce a correct positive image of a negative.
Next time you go to the beach, try sticking a negative onto your body and see what shows up at the end of the day!
These ghostly figures you see in these photographs weren’t Photoshopped in, but are purely done through light painting. If you remember the creative 3D light painting technique using an iPad that we shared a while back, Croix Gagnon and Frank Schott took it a step further and put a slightly morbid twist on it. For their project “12:31“, they “painted” using a laptop and an animation showing cross-sections of a human body!
Canon recently indicated that due to consumer demand for smaller cameras, they’re working on shrinking their traditional SLR system to make it more portable while retaining the mirrored design. It’s still possible, however, that they’re simultaneously working on developing their own EVIL camera to battle existing offerings and the camera Nikon is likely working on.
The above is a concept design by Idan Shechter over at Digital Photography Writer of what a Canon EVIL might look like. Do you think it looks better or worse than current EVIL offerings?
If you are upgrading your camera gear, horray for you! That also means you’re probably planning to convert your old camera to cash for new gear or at least to free up room in your camera bag.
Camera bodies are probably the most difficult piece of photo equipment to sell, since new bodies and technology are released very frequently. They lack the longevity of lenses and depreciate over time.
1. Think local — really local.
Before posting your gear advertisements anywhere, see if anyone in your immediate social circle is interested in buying. Co-workers or fellow students tend to be a good bet. When I was working at my college paper, a lot of photo department staff would sell gear to each other, with the comforting reassurance that their equipment would be put to good use. There is also an added level of trust within colleagues, since they already know you and you’ll spend less time having to convince them that what you’re selling is in good condition.
Craigslist, when used with caution, is also a good way to find local buyers. Be wary of scams, though — a lot of falsely interested “buyers” might email you with a strange proposal. I’ve gotten a few generic emails from people interested in “the item,” offer a higher payment via PayPal, and then ask you to ship it to some remote relative in Africa. Yeah, right.
If you do find a real, local buyer on craigslist, do be careful. Propose to meet in a safe, public place during the day, and bring a friend or two along for added security. Cash is always most reliable, as well. It might be a good idea to meet near your bank, so you can safely stow your cash after you’ve made a sale.
2. Advertise the basics.
You don’t need to go into detail about small wear and tear that you notice, or anything beyond the camera’s model and maybe highlight some important technical specifications like megapixels and frames per second.
It is helpful to post a link with more detailed camera specs, either from the manufacturer’s site or dpreview.com, for the buyer’s convenience.
But the bottom line is to cut to the chase and don’t let your advert be hunkered down by unnecessary details.
Just tell them, it’s a Nikon D200. 10 megapixels. 5 fps. Excellent condition. Body specs here.
The less you tell prospective, but serious buyers, the more they might want to respond to your ad with questions. Once you begin a discussion with them, that’s your chance to answer more detailed questions they might have.
3. Don’t include more than you have to in the box.
Naturally, you’ll need to include a battery, charger, and other accessories that came with the camera body, but avoid including interchangeable accessories that you might use in the future.
Michael mentioned in his gear on a student budget post that he made the mistake of including a high-end B&W filter with a lens he sold, but later realized he still needed it.
Hang on to those memory cards and filters.
4. On the other hand, you’ll have a better chance of selling it if you bundle it with a lens.
Though this is a bit of a contradiction to the previous tip, but buyers will be much more interested in purchasing a used body if it comes with a lens.
You probably will not make as much back on the resell, but if the market is dry and people just aren’t interested, a lens can add a great deal of buyer incentive.
However, whether you need to include a lens or not really depends on what kind of camera body you are selling.
If you are selling a professional body, chances are, your buyers will be pros as well, and are likely to have their own lenses. In this case, there’s no need to include a lens.
If you are selling a lower-end DSLR, like a Nikon D40 or a Canon Rebel, prospective buyers are probably newer to photography, and will likely be looking for a bundle kit.
There’s really no need to K.I.T. with your kit lens, especially if you’re selling the body it came with. Ask yourself: are you really likely to attach that plastic 18-55mm f/3.5-5.6 on your brand new D3x? Probably not.
Selling kit lenses alone is pretty pointless as well; brand new, they’re worth less than $150.
Instead, include it with the body you’ve got up for sale, and readjust your price. Be sure to check the street value of your bundle on eBay and craigslist.
5. Include your own photos of your gear on your advertisement.
If you provide photos with your advertisement, people are more likely to click on your posting. Additionally, if those photos are noticeably different from the standard manufacturer’s product shots, they can add to a feeling of authenticity and openness on the seller’s side. Also, when you post attractive product photos, the photos can imply your own skill as a photographer, and can give you more clout as a camera seller.
Understand the buyer’s standpoint when selling. Check out Michael’s posts on buying used DSLR gear and buying pro camera gear on a student budget. Don’t sell yourself short, but be aware that you may need to make some concessions in order to make your gear marketable.
Finally, if you’ve got any additional tips on selling gear, feel free to share it with us!
Image credits: D70s by salimfadhley, Hoya Filter and Wine Bottle by davidgsteadman, 18-55mm kit lens by Manchester-Monkey, and My new camera by Catherinette Rings Steampunk
Samsung is releasing a new hybrid digital camera system sometime in early January of next year called the NX Series. The idea is that the new series would combine the advantages of DSLR and point-and-shoot cameras. Before we go into some details, here are a couple photographs of the actual camera that were posted to dpreview’s forums.
The camera has the form of a DSLR, but uses an electronic viewfinder, allowing them to remove the traditional mirror system in DSLRs to make the camera smaller and lighter (and probably virtually silent). Though it has the portability of point-and-shoot cameras, it still offers a DSLR-style sensor for higher quality images, and an interchangeable lens system.
The decreased distance between the lens and sensor allows the system to use lens designs that traditional SLR/DSLR cameras could not support (similar to the crop sensor lenses of Canon/Nikon). Here are a couple photographs of the 30mm f/2.0 “pancake” lens that were posted to the k-rumors forums.
If that’s not a “compact” lens, I don’t know what is.
Though DSLR enthusiasts might not be too enthusiastic about the electronic viewfinder, the portability is something that will likely be a hit among people who would like to do DSLR style photography but don’t want to lug around bulky equipment. The company estimates that the hybrid digital camera market will have a 20% market share by 2012.
What are your thoughts regarding the NX Series?
(via Photo Rumors)
Canon just announced the Canon EOS-1D Mark IV. It’s the first DSLR in the flagship 1D lineup to offer HD video recording capabilities at 1080p resolution.
It boasts a 16.1 megapixel sensor (a 6 megapixel increase from the Mark III) and has an native maximum ISO of 12,800, but can be increased to 102,400 via a custom function. This means the camera has pretty ridiculous low-light performance. In comparison, the Mark III offered up to 3,200 ISO.
Pulitzer Prize winning photographer Vincent Laforet received a prototype of the Mark IV a couple weeks ago to try out, and quickly put together a short film. It’s pretty mind-boggling what this camera can do in low-light situations.
These features come at a steep price. The suggested retail price for just the camera body is estimated to be $4,999, so it’s not exactly the kind of camera you’d buy to just play around with.
To find out more about this camera (i.e. more detailed specs), check out the newly created Wikipedia page.