Copyright Notice• Attribution-NonCommercial-ShareAlike CC BY-NC-SA• This presentation is for educational purposes only. No money is being made andis provided with similar allowances for other educatorsto use for non-profit, educational purposes.• Images are from various sources, including many of my own. If you would liketo high res images I have shot, please visit www.DrewLoker.com for variouswork online.• If you are the original author of any of the samples, pictures, text, etc. please letme know if you object to the usage and I willremove your material promptly.Photo by Drew Loker
Front View w/o Lens
Left Sidewith Lens
Left Side View
San Disk, Secure Data (SD)Ultra II Plus
Main Features• AutoISO• Shake Reduction• Depth of Field Preview (with live preview)• 16-segment multi-pattern metering system• Picture and Scene Modes "Auto Pict“, six programmedpicture modes for specific scenes: portrait, landscape,macro, action, night scene portrait, and flash off. 8additional scenes modes available: night scene, surf andsnow, text, sunset, kids, pet, candlelight, and museum.
Main Features, Cont.• Advanced 11-point autofocus mechanism…with 9 of thosebeing cross-type sensors (capable of detecting both verticaland horizontal focus) the SAFOX VIII autofocus systemon the K100D Super uses nine cross-type sensors …meaning greater autofocus accuracy
ISO: 200-3200Auto ISO is the default setting for the auto and scene shooting modes and will set a sensitivitybetween 200 and 3200 as it deems appropriate. You can also limit the auto ISO range towhatever you choose, such as 200 to 800. ISO 200 is the default for the P, Tv, Av and M modesunless you have previously selected an ISO. ISO may also be manually set at 200, 400, 800,1600 or 3200.
It is just a test.Why shoot aflower atISO 3200?
Noise Sample 2: Long Exposure
ISO 3200• ISO200 and ISO400 both produce veryclean images, and even by ISO800 noiselevels are well controlled. Images taken atISO1600 have more noise present, but notexcessive amounts. Things start to getmessy at ISO3200, this sensitivity shouldbe reserved for when nothing else will doas the level of noise will be clearlynoticeable, even in smaller 6x4inch prints.
K100d vs. Other Cameras…ISO• The K100D performs well for its price point. Noise levels areacceptable, being better than the Pentax-based Samsung GX-1S. TheCanon EOS 5D outclasses the Pentax, but then it should do, it costsaround three times the price of the Pentax.
So, why shoot at HI ISO?• Because it’s 4x as sensitive…giving you 4stops faster shutter speed.– Example: If your BEST shutter speed in a darkplace, like a concert, is 1/15 of a second @ ISO200…you would get:• 1/30 at ISO 400• 1/60 @ ISO 800• 1/125 @ ISO 1600• 1/250 @ ISO 3200…which is fast enough to stopsomebody who is jumping around on stage…orflying through the air
1/320 @ 6.3, ISO 2500, 270mm, 6:20pm
1/80 @ 6.3, ISO 5000, 500mm, 6:36pm
16 mins later, despite 2x ISO…too much blur.• So, I decided to call it quits after this shot.
Resolution • 4M, (better) is more than enough
DSLR Advantage2/3” 5mp vs. APS-Sized CCD
Menu Button• Press Menu, then arrow selection buttons to navigate. Useright arrow to select. Use OK only when prompted.
Which is 6M and which is 1.5M ?
And youwould haveto bemakingsomeREALLYlarge prints(orcropping aLOT to tellthis in aprint.
Left is 6M and right is 1.5M ?
Function Button• Left… AWB = White Balance• Up… Drive Mode = Single, Continues,Self –Timer, Remote, etc.• Right… ISO = Set to 200…do not use AutoISO• Down… Flash Mode…
Info Button• This screen is shown when you press theInfo button while taking pictures
AUTO PICT = Pickle Mode• When you are a stressfulsituation, and yourpictures aren’t turning out,put it on Pickle Mode.• All other times, use eitherAv or M.
Shake Reduction• PENTAX original Shake Reduction mechanismfor sharp, blur-free images• Using magnetic force, this SLR system shifts thecamera’s image sensor vertically and horizontally atthe optimum speed to compensate for the amount ofcamera shake detected, assuring outstandingcompensation effects (equivalent to approximately 2to 3.5 shutter steps). Since this versatile system iscompatible with all existing PENTAXinterchangeable lenses*, it does not require specialanti-shake lenses equipped with add-on optics ordevices.
Shake Reduction System
• PENTAX, Olympus and Sony (formallyMinolota) use camera based– Advantage: ALL lenses used on the camera will benefitfrom the reduction of camera movement– Disadvantage: movement is greatest at the end of alens…so camera based is not as effective for long lensstabilization.• Nikon and Canon use lens based stabilization.– Advantage: Image movement is the the most significantat the end of the lens where stabilization is mostbenefited.– Disadvantage: Each lens has to have the costlycomponents driving up the cost.Camera based vs. Lens based
Lens Performance• 18mm– Barrel Distortion with light fall off
Lenses are ratedin several categories• Bokeh (how smooth are the out-of-focusareas• Color Rendition• Distortion• Falloff, Light• Ghosting• Lateral Color Fringes (Chromatic Aberation)