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Freitag, 16. Januar 2015

Ricoh Theta m15 First Hands-on and Review II

The Ricoh Theta is a lightweight companion for outings as it can hide in any pocket. A selfie stick and the mobile phone does not add much to it, and the mobile phone we carry around all the time anyway.

A test image, the first straight from the camera, the second after some tinkering with  PANO2VR and image processing. Notice the camera does not correct the roll degree

Ricoh Theta original jpg
Image after postprocessing
And the final image on Google View


Montag, 12. Januar 2015

Ricoh Theta m15 First Hands-on and Review

The second release of Theta's Theta camera is certainly a niche product. Quite astonishing that a big camera company ventures into this with a consumer product and price because the camera cant do anything but create fullspheric panoramas, not even a regular 'normal' snapshot. Lets see if this is a long-term thing or a one off, though I must say the updates from the first release are not really that huge, putting video aside (which is currently limited to 3min snippets). I dont think the market for real estate agents creating their own virtual tours is rather limited when you look at target figures of big companies.
There are a couple of independent crowdfunding projects around with similar devices.

In short: Is fun to use the Theta, though after a few shots by hand without phone you get annoyed making selfies all the time and you move on to the mobile app and with a tripod or a selfie stick, that helps you to 'carry' the camera above your head to minimize your own footprints in the final image (beware of bystanders looking at you!).

Some flaws

  • Fix memory (4GB, ~1200 JPG images)
  • Fix Battery (~200 images)
  • Noise (to be expected for such small sensor)

ISO 100
ISO 800

  • Stitching errors for very near objects
Stitching Error
  • Flare with direct sunlight (to be fair this is hard to handle anyway with fisheye lenses)
Flare
  • Problems with 1 lens full facing sun and the other one reverse



Montag, 16. Januar 2012

Canon TS-E 17mm shift and tilt lens

I fancied TS lenses for a long time, even bought a 4x5 to experiment some years back, but thats not exactly the kind of camera you carry around with 2 to 6 exposures. Yes, we can use Photoshop and tilt and warp images, fake miniature scenes, etc. but is not the same as using a TS lens. There are only few in the market and they are all expensive (though you can try a shift adapter for MF lenses on Canon or Nikon DSLR). Finally I got one from DDElectronics in Singapore (almost 400 SGD cheaper than other shops in town !), and just start to enjoy this new lens and learn to create images again in a completely new way. I spare you with technical details, as the web has quite a number of reports, tests and comparisons about this:
I highly recommend to read Peter Hills' introduction about tilt and shift here:
Drop by the TS-E 17mm Flickr group with plenty of real-life sample images:
My first personal impression:
  • Its a fantastic lens, a prime lens worth every cent. 
  • Crisp sharp.
  • You can shoot handheld, its a myth a shift lens always requires a tripod and a big screen.
  • Lot of glass without protection, you will take care of this lens !
A quick comparison to get an idea what it means to shift:

  1. Shifted 10mm, camera levelled
  2. Not shifted but camera tilted up to capture rooftops
  3. Not shifted but camera levelled