Thoughts about tech and gadgets

Does Sony HVL-60M overheat? PART II

Sun, 16 Jun 2013 16:12:00 +0300

So, yesterday I was not able to overheat HVL-60M indoor, using E-TTL HSS mode. But it overheated in when I provoked it, using full 1/1 power. Today I performed two tests: (1) out-door shooting, using HVL-60M as fill-in flash in bright daylight at 15 meter (16 yard) shooting distance and (2) indoor test, where I just fired flash in manual mode at 1/2 and 1/1 output levels.

Test 1, outdoor photography

My hypothesis was that using HVL-60M as fill-in flash at sunlight from long distance is pretty hard task because it has to compete with the highlight created by Sun, to fill in shadows.

So, I mounted Carl Zeiss 135mm F1.8 to my Sony SLT-a99 in order to provide space between the subject. Longer distance will stress HVL-60M even more, was my thinking. I abandoned to test the flash in real shoot, saving models. Instead of that I shot a tree :)

I shot mountain pine from 15 meters (16 yards). My camera was in P mode with fill-in flash, 1/160 sec, F4, ISO 100. I had camera in Drive/Lo. I just pressed the shutter button and waited. This as not a real-world situation. Camera just continued and continued, HVL-60M didn’t skip any flash. At least I did’t notice that. I shot 380 continious shots from the 15 m distance in sunshine until I overheated HVL-60M. So, it’s theoretically possible, but I really don’t believe that it ever occurs in my practical use.

Test 2

People from DPreview forum asked to count flashes-to-overheating at lower power levels. Due to time limits I did this test at 1/1 level two times and 1/2 leve also twice. For some reason, I had slightly different numbers, but here are the results:

at 1/1 25-41 flashes until overheating
at 1/2 58-64 flashes overheating

Conclusion

HVL-60M is not going to overheat in real-life shooting scenarios. You are able to provoke overheating, shooting 25-41 flashes at full power or 58-64 flashes at 1/2 power. But it’s not worse than Nikon SB-800, about 25 frames at 1/1.

Guide number 60 is an advantage and disadvantage at the same time. In most cases you need only 1/32 or so and the flash is very capable then, able to shoot 10 fps endlessly, no problem. But flushing all huge energy at 1/1, stresses output electronics and batteries. In this case heat is your enemy.

Would I buy it? No, but because of too high price. At 30-40% lower price, I’ll take it and will trust it in my shoots 100%.

Does Sony HVL-60M overheat?

Sat, 15 Jun 2013 10:17:00 +0300

I’m keen a99 shooter and I love my camera. I do lots of low-light-fast-movement performance shooting and my camera does excellent job. I never use flash, but one has to keep it in the bag. As there is no 3.-rd party flash units for new a99 ISO shoe, only Sony flagship HVL-60M left to my shopping list. Still, forums repeadetly warned about overheating. I decided to test that.
Yesterday I got HVL-60M from local Sony Concept Store for 3 days testing. These are my initial observations.

Summary: does it overheat?
Answer is Yes and No. If you really provoke it, then it does. Turn power to 1/1 and it overheats in 24 shots or so. Holy crap, you might think. No. In regular TTL use I was not able to overheat it.

How did I test

I charged my Panasonic 2100 mAh AA Li-Ion batteries. They were pretty warm, when I installed them into the flast unit, but this is real-world scenario.

I mounted flash to my a99, turned both to Manual. I selected 1/1 flash power from HVL-60M menu and started to take heavily overexposed photos:

Flash recovery is painful 5 seconds (or so) in 1/1 mode. But keep in mind, that it’s a powerful flash, with guide number 60. In real world you rarely or never need full power. After 24.-th shot, overheating icon appeared to LCD.

So, I waited 5-7 minutes or so, until flash cooled down and overheating sign disappeared.

In the second part I switched HVL-60M into TTL mode, letting flash determine power needed and started to shoot in Drive/Hi mode. HVL-60M did’t skip any single frame. Then I switched camera over to super-hi-speed 10 FPS drive mode, so called Tele-zoom Cont. Priority AE. Again, flash kept up with the pace. I shot 250 shots like that and got bored. There was no overheating whatsoever.

Tomorrow I take my camera/flash to outdoor photo-shoot and write about it.

These are my favourite lenses 135 mm F1.7 Zeiss :...

Mon, 10 Jun 2013 10:55:20 +0300

These are my favourite lenses

135 mm F1.7 Zeiss : SAL135F18Z Sonnar T* 135mm F1.8 ZA
85mm F1.4 Zeiss : SAL85F14Z Planar T* 85mm F1.4 ZA

They are heavy! Go to gym before 3-hour 2000-frame photo-shoot. And I guarantee, you still are going to break sweat.

I was priviledged to test and try the road bike with...

Thu, 09 May 2013 10:32:00 +0300

I was priviledged to test and try the road bike with “shock absorbers”, bike that won Paris Roubaix number of times. Specialized Roubaix

Conclusion: its pure road bike, stiff and precise. But it’s saving your back and avoid tires to explode in poor conditions. If you want to save your body, then get it. Highly recommended.

Sony RX1 Had a rare opportunity to test awfully 3k€-pricey Sony...

Thu, 02 May 2013 00:34:17 +0300

Sony RX1

Had a rare opportunity to test awfully 3k€-pricey Sony RX1. Its full-sensor, fixed lens compact camera. Probably meant for full-sensor DSLR owner, who needs small camera to-go.

As the Carl Zeiss Sonnar 2/35 lens is individually tuned for that specific 24MP sensor, the result is non-compromise solution. Image is insanely sharp and it’s possible to crop tele-shot fragments with huge detail. Awesome!

Conclusion: Buy if you have £££ to spend

Yesterday I had exclusive opportunity to listen superiour...

Wed, 01 May 2013 10:24:00 +0300

Estelon XC model

complex cabinet shape with no parallel sidewalls eliminates unwanted resonances

Estelon logo - symbol of exquisite engineering, design and audio experience

Alfred Vassilkov - the man behind Estelon

Color options. Each pair of speakers is made by order, based on owners individual taste and preferences.

Yesterday I had exclusive opportunity to listen superiour Estelon speakers, designed by Alfred Vassilkov and built in Tallinn, Estonia. As Estelon is heading to Europe’s largest specialist trade fair for high-end entertainment High End Munich, they had 2 models for listening: Estelon XB and most affordable 16 000 € Estelon XC (all photos are Estelon XC model).

We took relaxed 1 hour to go through Alfred Vassilkov’s favourite tracks, most of my personal taste. First thing you notice, that sound field and imaging is absolutely translucent. There is a concert hall, church, jazz club or studio, but not speakers — when you close your eyes. Second observation is, that you start to feel the emotion behind the music — all the meaning of ones piece is “tele-ported” to listening room with no loss of feeling. Third observation was that I started to notice imperfections and naturalness of instruments. Natural-natural-natural are 3 words how to characterize Alfred Vassilkov’s masterpiece.

Estelon speakers have exquisite component selection, but what makes it really special is cabinet material. It’s made in a special casting process, the use of a proprietary marble based composite and the extensive use of sub-structural stiffening spars breaks up resonance nodes and creates an internal acoustic chamber of non-parallel sidewalls that is all but immune to unwanted standing waves that can cause a colored sound. To develop the cabinet material, having all needed physical characteristics, took years. The result is, that the cabinet is heavy, bigger XA model weights over 80 Kg, and has virtually “dead material” properties.

Stay tuned, after the High End Munich, I’ll be back at Estelon and shooting their 80 000 € diamond-tweeter flagship model.

How to shoot the moon? Sony a99 + 500mm F8 Reflex +...

Tue, 16 Apr 2013 01:00:52 +0300

How to shoot the moon?

Sony a99 + 500mm F8 Reflex + tripod;
Manual mode, AF, 1/15, F8, ISO 400

How to get rid of chromatic aberration in Lightroom Lately I...

Mon, 15 Apr 2013 07:13:00 +0300

My shot, modified in Lightroom (added clarity, sharpness, gradient filter, vignetting)

Chromatic aberration clearly visible

Chromatic aberration removed by Lightroom

Lightroom 4 - how to

How to get rid of chromatic aberration in Lightroom

Lately I tested pretty good camera with cheap kit lens. It wasn’t big surprise, that I found pretty bad chromatic aberration there. But if you use Lightroom, it’s easy to get pretty much rid of them.

For regular family snapshots Samsung 18-55 III is OK lens, but...

Sun, 14 Apr 2013 18:22:00 +0300

Samsung 18-55 kit lens, shot at 18mm, 1/40, f22. Body NX300 20Mpix sensor, RAW

chromatic aberration

chromatic aberration

lack of sharpness

For regular family snapshots Samsung 18-55 III is OK lens, but not for landscape photography. This shot is directly from the camera. I shot RAW, full 20Mpx resolution. There is lack of sharpness at f22 and severe chromatic aberration in the corners.

Sony a99 + Carl Zeiss Sonnar T* 1,8/135 ZA

Sat, 13 Apr 2013 19:54:00 +0300

Carl Zeiss Sonnar T* 1,8/135 ZA at full aperture

Sony SLT a99 and Carl Zeiss Sonnar T* 1,8/135 ZA plus vertical grip

Sony a99 + Carl Zeiss Sonnar T* 1,8/135 ZA

Sony 50mm SAL50F14 50mm f/1.4 Lens Pretty soft full open,...

Sat, 13 Apr 2013 13:38:00 +0300

50mm F1.4 (cropped)

50mm F1.7 (cropped)

50mm F2.5 (cropped)

Sony 50mm SAL50F14 50mm f/1.4 Lens

Pretty soft full open, but at f1.7 it’s sharp. So, do not open it up! All photos shot by Sony a99 RAW, not processed, just cropped. Looking forward to get Sony 50mm f/1.4 Carl Zeiss Planar T* ZA Lens, available in July-Aug 2013.

All portraits shot at F1.4 - F1.7 - F2.5.

Sony VG-C99AM vertical grip for Sony SLT a99 Doubles nicely all...

Sat, 13 Apr 2013 09:01:00 +0300

shutter button where You expect

all button are exactly at the same positions

fir two additional batteries

notice bottom line on the display all 3 batteries

Sony VG-C99AM vertical grip for Sony SLT a99

Doubles nicely all controls to exactly the same positions to shoot in portrait. Adds 2 additional Sony NP-FM500H infoLithium batteries, makes possible to switch them during shooting :) Whenever it’s needed. Extends usage in theory to 1500 shots without battery replacement (be conservative). Batteries are depleted sequentially. Running battery is magnified, onm the left. First a99 uses #1, then #2 bettery from the grip and only then the one in the camera body itself. So, its possible to change batteries in the grup when shooting the last battery in the body. a99 on steroids ;)

Samsung NX300 smart camera Well built, billet aluminum on top...

Thu, 11 Apr 2013 12:02:00 +0300

Tilting OLED screen

APS-C sensor

Lumix XF1 on the left, NX300 on the right

Smart functions = WiFi

1/60 F5.6 ISO 1600 (!!!)

1/200 F5.0 ISO 1200

Low light test 0.3s F4.5 ISO 1600

Samsung NX300 smart camera

Well built, billet aluminum on top and bottom. Camera feels solid and well built. Body is slim, but kit lens add dimensions.

Smart means WiFi connected. So, it allows to upload hi quality photos to Facebook, Google+/Picasa, Skydrive etc. But most fun is to use Samsung Smart Camera App in iPhone or Android. It allows to place camera strategically, follow action via remote viewfinder on mobile phone screen and take shots remotely. Use Your imagination…

Great AMOLED touch sensitive screen. makes using smart functions easy, like selecting WiFi hot-spot, typing in network passwords or account names.

Great focus speed and accuracy in normal conditions due to innovative hybrid focusing method. NX300 has both phase detection and contrast detection areas on the sensor. Still, struggled in low light condition in longest focal length position.

20 Mpix is a tad too much for APS-C, I would prefer 16 Mpix and larger pixels for better low light performance and ISO capability. Shooting with slow kit lens in weak light is pain. Small aperture forces to use high ISO and long shutter, causing either bad noise or motion blur. Even pretty well lit situations may require ISO 1600. That’s not good, as noise is already kicking in.

Great cam for gadget lovers. Photographers stay most probably with their Canon/Nikon etc hard core photo gear. But when iPhone or Galaxy is not enough, it’s time to move over to Smart Camera now.

Shoot smart with Samsung NX300 Forget about buying $8000 huge...

Wed, 10 Apr 2013 09:27:00 +0300

Shoot smart with Samsung NX300

Forget about buying $8000 huge F2.8 telephoto lenses and bank-breaking full-size sensor DSLR’s for wildlife shooting. Be smart!

1. Install Samsung Smart Camera App to iPhone or Android
2. Place Samsung NX300 smart camera strategically
3. Wait — follow remote viewfinder
4. Take crystal-clear shots

All shots are saved in original resolution to camera SD card, but also transferred to mobile phone in 1616 x 1080 pixel reduced resolution. Phone and camera are creating peer-to-peer WiFi link.

Due to smart functions and WiFi capability, its possible to transfer full-resolution files to Picasa, Google+, Skydrive, Facebook, send them over e-mail or share to DLNA capable devices like smart-TV.

Nice gadget!

500mm f/8 Reflex Telephoto Lens, Model number: SAL-500F80 Its a...

Sun, 07 Apr 2013 13:58:00 +0300

500mm f/8 Reflex Telephoto Lens, Model number: SAL-500F80

Its a prime telephoto lens, weighting just 700 grams. Low weight is possible due to reflex (mirror surface) design. Due to f 8.0, enough light is required and shutter speed is 1-2 stops longer than other non-reflex tele primes. It’s the world’s only super telephoto reflex lens with auto-focus capability.

SAL-500F80 makes pretty sharp photos, when subject stands still or camera does high ISO. Donut-shape bokeh is pretty characteristic to reflex lens. Some might not like it. But it’s a cheap alternative for occasional wildlife shooters who are not going to spend 4000-10000 $ for large and fast lens.

Some disadvantages
- a99 does not support AF-D eg. fepth field focusing
- no zone or multi-point focusing, only spot focusing

Main fact, it’s discontinued. But sometimes available in ebay for mere $600-700. I got mine there.

I was looking long time new mono pod for my Sony SLT a99 to...

Sat, 06 Apr 2013 14:08:00 +0300

I was looking long time new mono pod for my Sony SLT a99 to shoot clear photos with 500 mm lens. First I was looking at Gitzo offerings, but the price of decent mono-pod was steep. They ask 350€ for Gitzo GM5541 series 5 carbon monopod and 250€ for Gitzo GH1780QR series 1 centre ball head. Total 600€ bill felt un-adjusted.

By lucky chance I found SIRUI. They offered heavy duty P324 carbon mono pod, withstanding 20 kg load, for only 94€ and additional 100€ for K-10X ball head. Total package just 194€!!!

After few days of shooting, I can say only good words about SIRUI. Ball head is smooth, there is no need to fix it properly, it’s possible to switch from landscape to portrait by using a bit more force, twisting semi-closed ball-head, but the camera with tele lens still feels firmly fixed during shooting. It’s possible to select pre-load on 1-12 scale, where 12 is 100% fixed position. I found useful to leave pre-load to 7, using my a99 and Zeiss 135mm f1.8

Mono pod looks gorgeous. Polished carbon threads are nicely visible and over-sized diameter just looks affirming.

Lumix GX1 and 14mm f2.5 (equiv to 28mm) is excelent street...

Thu, 04 Apr 2013 18:12:59 +0300

Lumix GX1 and 14mm f2.5 (equiv to 28mm) is excelent street photography set and travel companion. Small, light, sharp, fast focusing and fast in aperture.

Recommended!

What is Chromebook?

Mon, 01 Apr 2013 17:52:00 +0300

Google promotes Chromebook as “Computer for Everyone”. Price-wise it might be, as prices start from $250 or so. It’s sleek and light, it has plenty of battery-life. But what is it and is it really for everybody?
Quick and short answer is — NO, it’s not yet for everybody.
Longer answer is — YES, it for everybody, who looks for lightweight second computer. ‘

Consider Chromebook if
- you are already Google ecosystem user
- your main task is e-mails, documents, spreadsheets, calendar event planning, social media, web browsing
- if you have other (may be stationary) powerful PC or Mac for photo/video editing
- for second computer

Don’t consider Chromebook
- as your only computer and you have to edit photos, videos, do graphic design on that
- to use Skype (here is no Skype on Chromebook)
- you happen to be Google-hater for some reason
- you a afraid of cloud (there is no local data storage any more, everything is kept in the Internet)

So, if You spent all day only in Explorer, Safari, Chrome or other web browser and mail client software, Chromebook might be your choice of computing platform.

Why Chromebook is good?
- software is so lightweight, it boots fast and operates smooth;
- easier to create content than on tablet;
- good battery life;
- 3G-WiFi connectivity is easy and fast — you really are always connected;
- documents are saved in real time, you can’t lose any, even if computer crashes (highly unlikely) or when running out of battery;
- Google Docs is so refreshingly simple and practical
- No messing with drivers, updates etc

Google Pixel

What Cromebook to buy?
My recommendation:
Medium/Low budget: Samsung Series 5 Chromebook (model 550), based on Intel Celeron processor and GMA 3000, enough to run HD movies with absolutely no problem; About $400 with 3G+WiFi
Big roller: Go for Google Pixel

Tip of a Day: Don’t buy WiFi only version. 3G gives such a freedom.

Buy UHS-I SDHC cards NOW!

Wed, 27 Mar 2013 12:13:00 +0200

I was kind of stuck with my SanDisk Extreme Class 10 35 MBps SDHC card. But lately I bought new UHS-I class 95 MBps Extreme Pro SDHC cards from SanDisk. And I was really surprised about their speed. Therefore by current blog. I collected my random collection of 4 SD cards and measured their real-life speed by copying and reading 1.67 GB directory of 4 video clips and 62 RAW photos. Here are the results:

That’s how much faster is UHS-I compared to older Class 10 and Class 4 cards. Don’t forget to use USB 3.0 reader.

My conclusion: Go for it NOW!

Panasonic Lumix G Vario 45-200

Tue, 26 Mar 2013 00:07:00 +0200

Bought it. Used it. If you are demanding, then don’t consider it. Too soft in 200mm. I think that you should buy 100-300 if You really are in M4/3 world.

Here is my bird gallery, all shot with 45-200 and Lumix GX1

Science below…

Vario G 45-200 characteristics

G Vario 100-300 characteristics

Notice how contrast and resolution lines are dropping much faster on 45-200.

My valuation: mediocre