Pentax Screw
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Pentax Screw
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PENTAX SUPER TAKUMAR 55mm f/1.8 M42 SCREW MOUNT LENS US $29.00
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SUPER- TAKUMAR ASAHI OPT. CO., JAPAN PENTAX 1:1.4/50mm lens SCREW MT. US $15.00
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Macro photography is underused by many amateur photographers. Professional photographer use macro photography to take extremely high quality macro photos that impress their viewers. Here are some facts about such macro digital photos.
We have all seen macro digital photos even if some of us did not realize that they were such. The two most common macro digital photos objects are flowers and insects. But macro photography is not limited to these objects. Creative photographers take macro photos of objects that you would never think of - and create astonishing digital photos. For example taking a macro photo of a simple screw that is half way screwed in a piece of wood can be an amazing digital photo if taken using the right techniques of lighting and macro photography.
So what is macro photography? There are many definitions that can be used. The most intuitive one is simple: digital photos that are taken from very close to the objects. Another definition is digital photos that present objects in real life sizes when printed on a 4X6 paper. Yet another definition extends this to a real life size (1:1 ratio) or better (i.e. bigger than in real life).
Professional photographers use special equipment that was designed specifically for macro photography. Special lenses, lens tube extenders, flash units such as ring flashes and more are used. There is no doubt that such equipment can help specially in scenes that are hard to photograph. But even the cheapest digital pocket camera is capable of pretty good macro photography if only used right by the photographer.
Practically all digital cameras can be put in a "macro mode". Usually this mode is illustrated as a "flower icon" (probably because flowers are the most common object for macro photography). When you put the camera in a macro mode - the camera optimizes its settings for the best macro digital photo. If your camera allows manual control of some of its settings (like aperture and focus) you can improve the quality of the photos further more.
In macro mode the digital camera will set a wider aperture in order to achieve a narrower depth of field. This helps create a macro photo that is focused on a very close item with its background blurry. The camera will also optimize its focusing algorithms to focusing on a very close object. In fact in macro mode it will be hard to make the camera focus on objects in normal or infinite distances.
Some cameras also set the flash intensity to lower since the object is close less flash light energy is needed to light up the scene. Macro photography lighting is a complicated issue due to the close proximity of the object to the lens. A right angle, source and intensity of the flash are hard to achieve. For that reason it is always better to take macro digital photos in a highly lit environment like in daylight.
In conclusion - like most other photography techniques it is important to use macro photography in the right scenarios. It also takes a lot of practice to achieve high quality macro digital photos. For example if you want to get a macro photo of a bee on a flower - you need to learn how to lock the camera focus - press the shutter button half way while all the settings are set and wait for that bee to show up. Also take as many photos as you can so hopefully one of them will be the perfect one you were aiming at. Go out and start taking macro photos to practice your skills. It is a good idea not to limit yourself to flowers and insects, anything can be a good object, a nail, a screw or a piece of candy.
Ziv Haparnas is a technology veteran and writes about practical technology and science issues. This article can be reprinted and used as long as the resource box including the backlink is included. You can find more information about photo album printing and photography in general on http://www.printrates.com - a site dedicated to photo printing.
Review of Canon Sd950
Ah yes, the Canon SD950. Having owned many digital cameras over the years, I sometimes try something new but always end up gravitating back to Canon's SD series. In size, quality, sturdiness and handfeel, they are simply unparalleled by any competitor or model. Now comes the SD950 - Just recently announced and rolled out to replace the SD900. Always skeptical and obsessive in doing research before making an electronics purchase, I decided to try out a friend's SD950 he kept recommending. I definitely wasn't disappointed - I ordered it the next day. After a few weeks of daily use and abuse, I'm ready to provide a proper review of Canon's SD950
Note: To view this review in full with camera+sample photos, please visit Canon SD950
The first thing you notice about the Canon SD950 is its appearance and size.
The SD950 comes titanium clad with chrome accents, making it not only extremely rugged, but also visually pleasing with its smooth matte silver finish.
Add that to its size - The dimensions measure only 1.1 inches deep, 2.4 inches tall, and 3.8 inches across. The camera roughly measures up to be the same size as a deck of cards - Quite small for a compact digital point and shoot that's loaded with such powerful features.
The camera is extraordinarily robust for its paltry 5.8 ounce weight, providing for an excellent handfeel. Have you ever held a camera and gotten that light and tinny sensation, like it could crumble in your hands or shatter when dropped? This is definitely not so with the SD950 - And it's light enough to fit into a shirt pocket without burden. Additionally, the camera has well placed grooves and ridges for a secure handhold, and the shutter button is intuitively placed (are you reading this Pentax?) where the index finger rests, allowing for one handed shooting with ease. Overall the action and use of the SD950 will suit even the clumsiest hands, both large and small.
Clearly, the most important aspect of a digital camera is picture quality and power. This camera has both more thoroughly covered than an OJ Simpson trial
(Bad joke, I know)
It's baffling that this tiny camera somehow shares a sensor with its much larger cousin, the digital heavyweight Canon G9, making it the beefiest sensor out of any SD. At a whopping 12.1 megapixels, the clarity and resolution of photos - taken by a simple point and shoot - is unmatched. The photos I took were not only vibrant in color and crystal clear, but had such a high resolution that I could practically print out posters with top notch clarity and detail. This is upgraded from the SD900's already impressive 10 megapixels. At 12, you can't really get much higher, nor do you need to. After investing in this camera, I'm going to kick back and rest assured that I won't need to replace it for a long, long time.
As far as shutter speed goes, Canon once again has me impressed, considering the massive resolution of the SD950. Without focus acquired, I averaged .44 seconds. With focus acquired, I shot within .1 seconds. Unless you're trying to freeze bullets midair, this should be good enough for anyone. 5 shots taken back to back were accomplished within 2.5 seconds. Brilliant, even for fast action sequences.
A downside to all this power is its effect on battery power. The advertised battery life is approximately 240 shots - The amount of shots I took in my experience hovered within 10 shots of that level. This is enough for a full day of shooting, a few days of intermittent shooting, or a few weeks of sparse shooting. Although this is disappointing compared to the rest of the SD950's features, it is still fairly average for cameras in its class, and I found that on a practical level it didn't really affect me. I've never been in any situation, at home or abroad in which I came close to shooting that amount without being able to recharge. If so, I'd probably spend a few bucks on a backup battery. For most use (like an event, vacation, etc) this shouldn't be anything to worry about.
Other notable features:
In case you're wondering where "IS" comes from in the product name, it means Image Stabilization. This is an amazing mechanism inside the camera itself - If you're shaky with your hands, or in low light conditions, the lens actually counter-gyrates within the camera in order to cancel it out and mitigate any blurriness. Truly a marvel - this has saved whole albums from getting screwed up when shot at night and in other unfavorable conditions.
The zoom is better than practically every camera in its class, only getting beat out by cameras that specialize in zooming (but lack in other practical features). The Canon SD950 can hit up to 3.7x optical, with another 4x in digital. Nice.
Other features:
Digic III Processor (Top notch, pioneered by Canon)
Red-eye Correction (No more turning your friends into vampires)
Face Detection Technology (Automatically detects, frames, and focuses on faces in group and portrait shots. I love this feature - there's nothing more awkward than having a group stand in place for an hour while your camera tries to focus!)
80-3200 ISO range to suit any shooting condition
Shooting modes: Auto, Manual (for more presets, adjustments), Scene (11!) settings for any shooting situation, Movie mode (with time lapse! this is a lot of fun). I was pleasantly surprised at the clarity and definition of this little camera's films
230,000 pixel LCD screen: Provides an excellent preview with virtually 100% image coverage, and 15 brightness settings.
Oldschool viewfinder: So glad they provided this! So many digital cameras skip this feature, which is priceless in situations of glaring light, or god forbid an LCD screen outage
Conclusion:
Having researched point and shoot digital cameras extensively, you cannot find a higher quality point and shoot, especially for a price tag that's shockingly modest for a newly released powerhouse. The Canon SD950 blew away any previous camera I've owned, as well as any competitor I researched, with its unparalleled 12 megapixel rating, image quality, and clarity. Given its specifications and my personal experience with it, I can't help but write out what appears to be a glowingly optimistic review. Kudos to Canon. If you're looking for a rugged pocketsize camera you can take anywhere, but don't want to sacrifice even a shred of quality in the process, this is a no-brainer.
Bad news:
Battery life isn't anything to write home about, comparing roughly to other cameras in its class
Good news:
Top of its class Megapixel rating
Unparalleled image quality and clarity
Above average zoom
Immediately noticeable sturdiness and construction quality
Optical Viewfinder
Image Stabilization
Modest pricetag
For several sample photos, as well as closeups of the camera itself as well as purchasing information, please visit my blog below
About the Author
http://www.canonsd950.blogspot.com
Where can I find a part to a Pentax Asahi ME camera?
A friend has a Pentax Asahi ME SLR camera, quite old, and it is missing the screw that holds the film winder on. Does anyone know where I find that screw?
I think it's doubtful that Pentax will still support a camera that's 25-30 years old any more. You're best bet is find a camera repair shop that repairs older cameras. Look in some of the photo mags, and the good old phone book. Somebody on E-bay might have a junker for sale you can mine for parts, but that's kind of hit and miss. Also a swap meet might produce results.
Pentax Optio W90 rugged camera
Whatever the weather Review Summer is here, sort of. The beaches are soon to be filled to capacity and anyone with any sense is clambering aboard the first plane to somewhere hot and sandy. That's a disaster for most cameras, which don't happily take to beaches, airport baggage handlers or seawater. Unless you've a 'ruggedised' model, of course,…
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US $32.83