16 Miles

I flew back yesterday to the bay area to see my cousin’s graduation.  Of course, the ceremony is on Sunday, which left Saturday free for a day hike.  So I was up at 6:00AM and off to the carpool at Page Mill Rd.  The forecast was rather dire – high of 105 degrees in Portola Valley – but we decided to give it a shot anyway.  There was a good crowd at the carpool spot.

Route was mainly in Corte Madera open space.  Nominally we were following directions left by Charlie, but in spite of Francoise’s best efforts, we managed to deviate fairly significantly.  We did keep to the trees though, which was the important part, so even when the temperature reached into the high 80s in the afternoon, it wasn’t unbearable.  The last ascent to the parking was fairly brutal though.  After four weeks of no hikes, even sixteen miles feels like a lot.

It was particularly good to see some of the folks I missed on my May visit.  Looking forward to resuming the Saturday hike routine again.  In California.

Of course, when we got home, I discovered the rear window wouldn’t roll back up (it was down to cool off the car).  Can’t even pull it up manually (it’s all the way down).  Bugger.

Micro 4/3 lens comments

 

Camera lens

At this point, I’ve either owned or tried most of the micro 4/3 lenses, and I’ve seen samples from virtually all of them.  As a result, I’ve got plenty of opinions as to which of them are worth buying.  Which are those?

No-brainers:

  • Panasonic 7-14mm f/4.0 – one of the best ultra wide lenses, on any system
  • Samyang 7.5mm f/3.5 – great fisheye
  • Panasonic 20mm f/1.7 – perfect carry-everywhere prime
  • Olympus 45mm f/1.8 – excellent in every respect
  • Olympus 40-150mm f/4.0-5.6 – light, sharp, fast-focusing and inexpensive

Well worth looking at:

  • Panasonic 14-45mm f/3.5-5.6 – better than a kit lens has any right to be
  • Panasonic 25mm f/1.4 – the best low-light normal lens, for a price
  • Panasonic 45mm f/2.8 macro – great at macros, but good at lots more besides
  • Olympus 75mm f/1.8 – incredible optics, if you need the focal length

Since writing this post, I have created a full table of micro 4/3 lenses and my comments.

State of the Pack, 2012

After the weekend’s Mt. Shasta adventure (summary: made it to Shastina, but not to the main summit), I am once again dreaming of clever ways to lighten my backpack.

Currently, the base weight of my pack is around 8.8kg (just under 20 lbs), which doesn’t sound like much, except that when food, water, camera paraphernalia and necessary snow gear are added, it becomes a much larger number very quickly.

My goal would be to get everything down to 5kg, but that may not be feasible.

In any case, here’s the current packing list:

Continue reading

Panasonic 14-42X impressions

14 42x 20

Thanks to UPS and their inability to deliver to a place they’d previously delivered without difficulty (home), I picked up my new lens (and the camera it came with) three days later than I’d hoped.  The Panasonic Lumix X 14-42mm f/3.5-5.6 is a fairly typical kit zoom lens for micro 4/3 cameras with one special feature – when not in use, it collapses down to the size of a small ‘pancake’ prime lens.  I got it for the simple simple reason that when attached to my Olympus E-PM1 body, the whole kit is small enough to fit comfortable in a jacket pocket (the Olympus kit zoom is around twice as thick).

In order to achieve this wonder in miniaturization, Panasonic designed the lens as a power zoom.  There is no zoom ring.  Instead, there is a small rocker-style switch on the lens barrel, which you push up or down to zoom in or out.  When camera is on, the lens automatically extends to its full size (still quite small).  It also features an optical stabilization mechanism, but that can’t be used on Olympus cameras.

The build quality of the lens is pretty good – high quality plastics and whatnot.

The optics are more of a mixed bag.  At 14mm the lens is reasonably sharp, and it’s even better at 25mm.  But at 42mm it displays a major oddity, with many (most?) shots displaying what appears to be motion blur (doubled details).  This is odd because it happens almost regardless of shutter speed.  You don’t really see it until you go past 50% magnification, but that means it’s basically turning a 12MP camera into a 3MP one.

I did some research after the lens arrived, and it looks like this issue is fairly common.  A pity, as the lens is otherwise ideal for mountaineering and other occasions where it’s not good to have a camera dangling from your neck.  So despite the difficulties in obtaining it, I’ll be sending the Panasonic 14-42X back for a refund.  I hope they fix the blurring problem soon, as in other respects it’s a very handy lens.

On moving

Moving from one apartment/house to another is one of those tasks that seems to always take more effort than planned.  Still, in between two final exams, I managed to pack up most of my things, so that when I finished this afternoon, I could drive down from my grandmother’s place and start hauling bags and boxes.  I kept things pretty minimal throughout my stay at ‘the Arbor’ (the university apartment building in the Bronx, where I’ve been since October), but between the kitchenware, computer paraphernalia, books, papers and clothing, I pretty well filled up the car.  The whole process took around two hours.  Thank goodness there was no furniture.

I’ve always thought that it would be nice to live in a way that if you needed to, you could pack all your belongings into two suitcases and be ready to hit the road on an hour’s notice.   Not that I necessarily want to move frequently mind you, but the freedom to do so would be quite welcome.  In practice, that’s proven just about impossible.  I did live that way in Paris for 5 months, but I depended on my hosts for a good deal.  The difficulty in general though is that living minimally requires sacrifices that in the medium and long-term are not so fun.  A small computer screen.  No cooking at home.  Very few photographs or mementos.  Etc.

Now all my things are packed in my grandmother’s attic, save for the few I’ll need this summer.  I’ll probably have to make my next move at the end of the summer.  Hopefully that one will be relatively painless as well.

Installing xv6 on MacOS X

Qemu

For the OS course this semester, we’re using xv6, a simple operating system based upon Unix System 5, but rewritten from scratch for modern hardware and compilers.

The process for building xv6 on MacOS X is slightly more involved than on other systems.  It took me a few tries to get it right, so here it is.  These instructions are for MacOS X 10.7 (Lion), although they should be similar for other versions.  They’re based on the original MIT instructions.

Continue reading

In Memory of Carol

Today I went to the memorial for Carol, one of my grandmother’s best friends.  Carol passed away last month after a long illness.

It’s hard to know what to say at such an event.  Words seem painfully inadequate.  She was an extraordinary person in many ways, but above all she had a knack for bringing cheer and joy wherever she went.  In our hurried, impersonal world, that is indeed a rare gift.

One of the more poignant moments at the memorial came when her close friend explained that Carol had said previously that she didn’t want any memorial to be held.  “I know.  But it’s not for you.  It’s for us,” the friend replied.  And it was.

Goodbye Carol.

Site anniversary

It’s hard to believe that I made my first post to this site’s predecessor (myownlittleworld) exactly ten years ago.  The site has had its ups and downs since, much the same as its author, but I’m hoping it will still be going strong ten years from now.

Looking back at old posts and the memories they conjure up, I recognize the skinny, sharp, cynical, occasionally confused kid who posted his musings on these digital pages.  I’m not sure quite what he’d think of the current version of me, but I hope wouldn’t be too terribly disappointed.

And if I could send a message to that fellow (not that he would have listened!) what with hindsight being a benefit and all, it would have been: Don’t take yourself (or anybody else) so seriously.  Life is just too short.*

*Seriousness is a leading cause of chronic overcautiousness among other damaging neuroses.  Such a condition, if untreated by ample quantities of levity and silliness, frequently degenerates into a state known as ‘being a tiresome bore.’

Getting Colorful

The leaves are about to ‘peak’ here in southern New York state.  I made a short detour to Rockefeller State Park this morning (Westchester, near Briarcliff Manor).  It was a scenic but crunchy walk.

Leaves

Autumn Weather

Two days before Halloween in New York City, and there’s 3 inches of snow on the ground.  I’m sure there’s a good explanation for this.  In the mean time, I’m glad I have winter hiking gear.

Snow in NYC