Profile

Cover photo
Andrew Somerville
Attended University of New Brunswick
Lives in Fredericton, New Brunswick, Canada
141 followers|14,854 views
AboutPostsPhotosYouTube

Stream

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
How can you not shoot at f/2.8 in full sun? f/2.8 is plenty slow enough to shoot wide open at 1/4000 and ISO 200 under sunny conditions. 
1
Andrew Somerville's profile photoMrCheesyCam's profile photo
2 comments
 
Ah, thanks for the explanation. I thought you were talking about shooting photos. 
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
Great that someone finally did a proper continuous auto-focus test with the latest generation of mirrorless cameras. He concludes that while the D4s is still at or very close to the top in AF, that the GH4 is so close that it's basically the same and that the GH4, E-M1 and Sony A6000 are out-competing anything in their price range in terms of tracking and burst rates. 

I've noticed that the E-M1 is far, far better in movie focusing than previous models. Haven't done a lot of testing in high speed continuous shooting yet but I'm looking forward to giving it a workout during Louise's soccer games this season.

I'm also fairly certain the single point AF tests would have gone much more in the E-M1's favor if they were using an Olympus lens. I have the Panasonic 35-100mm f/2.8 they used and it is slower in S-AF mode than the Olympus 12-40mm or the Panasonic 25mm f/1.4, although in movie or C-AF TR mode it is incredibly smooth. 
2
Paul Gomes's profile photoAndrew Somerville's profile photoparisto's profile photo
3 comments
paristo
 
+Paul Gomes tested the E-M1 AF modes at dog and horse races in the hard turn and straight line toward me and then at rally and there was no problems to focus subject in any other mode than C-AF+Track, what suffered couple times from losing lock from white / black car front and locking to white building behind it when passing by. Tracking lock was set Off so there might be the reason.

Otherwise I would say 95% keepers and more problematic is the body rotation techniques with vertical stabilization only when trying to use 1/15-1/50 shutter speed to get motion.
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
Great explanation. I have no idea why any of this is controversial. If you sit down with a piece of paper and a pencil and work out exposure from first principals you'll come to the same conclusions Tony did. Larger sensors don't need to apply as much gain to achieve the same ISO because they have a larger area. So gain-equivalent (and therefore noise-equivalent) ISO is proportional to the sensor area, or the square of the crop factor. Which works out well when you realize that to get the same image at the equivalent focal length on a smaller sensor, you simply shoot at a lower f-number. 

I'm totally with him on the fast lenses thing. MFT needs fast lenses. My 25mm f/1.4 gives me the shallow DoF of a 50mm f/2.8 lens on FF which is quite nice. Olympus really understood the need for fast glass when they made the four thirds system lenses, with the 14-35 and 35-100 f/2.0 lenses which at the time were the brightest zooms available. They're still selling these lenses for the four thirds mount. Rumor has it that the 14-35 is actually an f/1.4 optically, but they weren't happy with the results wide open so they limited it to f/2.0. 

I'm hoping to see one of the big names come out with MFT primes in the < f/1.2 range. 
3
Andrew Somerville's profile photoPaul Gomes's profile photoJohn Leslie's profile photo
13 comments
 
+John Leslie It is possible to completely emulate FF using faster lenses, of course down to the differences in sensor technology, which according to DXOMark are within about 1% of the crop factor from the E-M1 to the D800E. But those lenses aren't as readily available on smaller formats. Speed boosters can get you to f/0.7 on MFT (Nikon AI 50mm f/1.2 + metabones for example, ~$500-$700  on e-bay for both) and native f/0.95 manual focus lenses are available. 

I thought Olympus made some interesting choices with the four thirds system. Their 14-35 and 35-100 lenses were designed to be f/1.4 (although ended up being software limited to f/2.0 for reasons of sharpness). At f/2.0, these lenses effectively allowed you to get the same shots as with 28-70 and 70-200 f/4 zooms on FF. 

The stitching technique you mention is something I'm going to try out. :) 
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
So why would you buy this instead of an E-PM2? Seems like very bad value. 
1
Paul Gomes's profile photoAndrew Somerville's profile photo
4 comments
 
I was being only half serious.  This "no cameras with detachable lenses" rule is becoming more and more common, much to the annoyance of enthusiasts and casual users who chose SLRs - only to see themselves being barred from using them at events while their photography-ignorant friends walk in with their point and clicks.

I guess  that is a downside of increasing popularity of mirrorless, if they get too popular then eventually security will recognize them as cameras and you won't be able to pass them off as point-and-shoots at events like this ;)
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
Honestly, I'd give my money to Elon Musk if I had oodles of it. Not that there's anything wrong with charitable work, but I have great confidence that Elon would invest my money in something worthwhile. For example, I'd love to see affordable electric cars sooner rather than later. Or high speed inter-city public transportation. These things don't just help the rich. 
8
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
1
Don Juan's profile photo
 
Fuckingg twitter and west and Christians!!!
Add a comment...
Have him in circles
141 people
Sen Wang's profile photo
Garth Christie's profile photo
Arpad Kormendy's profile photo
Margaret Mielke's profile photo
Jing Li's profile photo
Steve Smith's profile photo
Sean Perley's profile photo

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
The gaps in the star trails are clouds passing over. Happens when you take them on a partly cloudy night. 
1
Add a comment...

Andrew Somerville

Shared publicly  - 
 
Got my E-M5 back from Olympus, good as new, only 7 days after I mailed it. They replaced the shutter, gear case and the screen frame. The screen frame was a recall: they always replace them on E-M5's of a certain vintage. 

What seems to have happened is that a cheap aftermarket battery failed and expanded, putting pressure on the shutter gear case, causing it to jam. The battery was at least a millimeter bigger around the center and it really didn't want to come out. 

Anyhow, it's all good now, and I'm super happy with both the cost of the repair ($165.88 plus tax flat repair charge including return shipping) and the speed and quality of service. It's nice to know that this kind of service is available from the OEM at such a reasonable price. I've since tossed out my aftermarket batteries and grabbed a couple of Olympus replacements. 

In terms of the E-M1, the increased dynamic range and sharpness are noticeable, at least to me. However the E-M5 appears to have better low light performance, especially at 200-6400. While the E-M1 handles much better with large lenses and strobes like the Panasonic 35-100 and Olympus FL-50, I'm much more comfortable with the E-M5 when used with smaller lenses like the PL 25mm f/1.4 for the Samyang 7.5mm fisheye, my two favorites. 

The Panasonic 35-100 f/2.8 is also really growing on me. I knew I'd get a lot of good out of a sharp medium telephoto and this one is just out of this world. I pointed it up and took a quick shot of the moon while it was still daylight at 100mm, f/2.8 and ISO 200. When I proceed it, I cropped it down to 1/2 its original width and height. I'm very happy with this result. 
1
Ben der's profile photo
Ben der
 
+Andrew Somerville Thanks for posting the cause, effect and solution...
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
Recently, the shutter jammed in my E-M5. The shutter count was around 20,000 so I sent it in for repair. Worst case, $165.88 standard repair charge, even if they have to replace it. Best case, the rep thought it might have been a defect which they will correct for free.

While I wait, I ordered myself an E-M1 from Henry's, on sale for $1299.99 Canadian along with the Panasonic 35-100mm f/2.8, also on sale for $1299.99. They're arriving on Monday.

I'll keep the E-M5 as a backup body or a more portable body for just walking around. I'm still completely satisfied with the performance of the E-M5 and hopefully I'll have it for many years to come. I even still enjoy shooting with my wife's E-PM1 from time to time just because it's so much fun to shoot with a super light, fast and powerful camera. 
1
Andrew Somerville's profile photoBen der's profile photoJodi Curtis's profile photo
11 comments
 
I do have a pretty good idea what happened now. I noticed the battery was a little hard to get out after the camera died. On closer examination, the battery was bulging out in the middle. I think it must have put pressure on the I/O shield plate inside the battery compartment, causing a short circuit. 

I tossed both of the cheap knockoff batteries and ordered a couple Olympus BLN-1's as soon as I noticed. Olympus should receive the E-M5 tomorrow. It'll be interesting to see what they say. 

In the meantime, I love the E-M1 and 35-100mm f/2.8. So far I haven't been disappointed with a single Panasonic lens. 
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
What's with the north shore New Brunswick accent? ;) 
1
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
Cool project! 
1
Add a comment...

Andrew Somerville

commented on a video on YouTube.
Shared publicly  - 
 
Interesting. 
1
Add a comment...
People
Have him in circles
141 people
Sen Wang's profile photo
Garth Christie's profile photo
Arpad Kormendy's profile photo
Margaret Mielke's profile photo
Jing Li's profile photo
Steve Smith's profile photo
Sean Perley's profile photo
Education
  • University of New Brunswick
    Masters of Computer Science, 2010 - 2012
  • University of New Brunswick
    Bachelor of Computer Science, 2000 - 2010
Basic Information
Gender
Male
Work
Occupation
Computer Scientist, Programmer
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Fredericton, New Brunswick, Canada
Previously
Juniper, New Brunswick, Canada
Links