Saturday, January 31, 2009
Friday, January 30, 2009
Wednesday, January 28, 2009
Review: Canon 50d DSLR Camera
I had submitted this exact text to Amazon.com as a Canon 50d (body only) review, but apparently they found some of this text offensive... I will let you decide which ones (I think they just got concerned that this critical review may hurt 50d sales). Here is what they approved to publish.
And here is the full original text:
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Let me start by saying that I started as a Canon owner in DSLR world (Canon Rebel XSi 450d). That was my first camera, and I loved it. I intermediately tried a Nikon D90, owing to its apparently great noise performance and the punchy color rendition... only to realise Nikon lags a bit in LiveView implementation which was better even in an XSi.
So I ordered a Canon 50d, hoping to get the liveview I wanted, PLUS a noise performance better that even the Nikon D90 (rival?).
Now by this time I had tried a 450d and a Nikon D90.. and so I was surprised to find out that 50d nowhere matched noise performance of a cheaper Nikon D90! And I am not talking about per pixel performance.. I am talking about day-to-day indoor shooting results. Canon 50d images had a lot of chroma noise for same shooting conditions. I wont go into why the 50d images look so soft at pixel level.. because different people have different theories about that. But if end result is what matters, here are my 2 cts as an enthusiast photographer who also works in imaging field:
- Canon 50d results can not match the Nikon D90 ones in colors (and YES I did struggle with the picture style editor - its not a simple linear transformation to go from Canon's RAW color space to Nikon's color space)
- Nikon D90 allowed me to capture sharp indoor pictures in room lighting with minimal noise as compared to the Canon 50d. And I have images to compare.. not 1 or 2.. but hundreds.
In the end, I realised that a better Canon 50d liveview may perhaps help me in technically getting good pictures... but a Nikon D90 gives me the end results that I love.. and love going back to look at. The difference is very subjective.. and has more to do with aesthetics than the technicalities. You have to go through both the cameras to understand that.
Pros for a Canon 50d:
- Solid built
- 15 MP (do they matter anymore?)
- Great dial interface
- Bright hi-resolution LCD, with 30fps live view
- The lens-specific auto-focus micro-adjustment feature is cool. I actually needed to use it with the first lens I purchased: A Tamron 17-50mm f/2.8 which was terribly off-shooting.. by about 17 units (as seen on the calibration screen). However, I wasn't too sure I needed that feature.. since I am not a professional.
Cons of a Canon 50d:
- Noise performance isn't comparable to even cheaper models like Nikon D90. And no matter what you say about in lab tests and technical data, its the end result that matters. And I couldn't get the same results from a 50d that I could from a D90. Read more about independent noise tests on imaging-resource here: http://www.imaging-resource.com/PRODS/E50D/E50DHI_ISO_NR.HTM. Search for "50D vs D90 Comparison".
- Very hard to get the punch out of the colors using just the picture style editor. The color transformations are unitary...you cannot rotate the whole color wheel or work on big sections of the color spectrum all at once.
- Heavy. And I mean HEAVY with a good size lens.
- A tad big for me.
- PRICEY!!
In summary:
- if you have ~$1500 to spare for a new camera+lens kit (as of 1/27/2009),
- if you like post processing to get the colors/shades you want
- if you are a pro photographer with established liking for Canon's image quality
- if you have a Canon 30d or below and have existing sizeable investment in Canon lenses,
then Canon 50d is for you.
If, however, you already own a Canon 40d, I dont think just extra MP and a brigher LCD will do you any good from a 50d. Plus a 40d may serve you equally or even better in terms of performance.
Remember, there are always alternatives like the Nikon D90. And for $1500 (as of Jan 27, 2009), you can even get a 70-300mm VR lens with a basic 18-105 kit lens. It is a wonderful kit for an intermediate dSLR enthusiast.
Whichever way you decide, I wish you luck in that you enjoy your purchase!
Canon 50d lens AutoFocus micro-adjustment
The one thing that I was really impressed with on a Canon 50d body, is its ability to allow custom lens auto-focus micro adjiustments for lenses that front/back focus. This is a common problem with third party lenses since their engineers reverse-engineer the lens-body communication, and thus dont have a perfect idea if this mechanism will work right.
I saw that the first lens I bought with my 50d, a Tamron 17-50mm 2.8, was back-focussing by quite a lot! In the camera body, a compensation of +17 units was needed to correct this problem (the scale for micro adjustment follows the closed integer range [-20, ..., 0, ... +20], the units are un-specified).
It took me about 1 hour to calibrate the body for this lens. I thought this was a grossly mis-calibrated lens... even though I dont know what the units of adjustments are... but I would have had to move the barrel quite a lot to correct the focus everytime on any other body that didnt have this adjustment feature.
All in all, this is a great feature on the 50d... and although it is a great to have feature, it couldnt stop me from getting the D90 instead because of brilliant colors and low noise images. Needless to say, the Tamron and the Canon 50d both went back for a refund.. and my Kata H-14 bag now hosts a shiny new D90 kit:-)
I saw that the first lens I bought with my 50d, a Tamron 17-50mm 2.8, was back-focussing by quite a lot! In the camera body, a compensation of +17 units was needed to correct this problem (the scale for micro adjustment follows the closed integer range [-20, ..., 0, ... +20], the units are un-specified).
It took me about 1 hour to calibrate the body for this lens. I thought this was a grossly mis-calibrated lens... even though I dont know what the units of adjustments are... but I would have had to move the barrel quite a lot to correct the focus everytime on any other body that didnt have this adjustment feature.
All in all, this is a great feature on the 50d... and although it is a great to have feature, it couldnt stop me from getting the D90 instead because of brilliant colors and low noise images. Needless to say, the Tamron and the Canon 50d both went back for a refund.. and my Kata H-14 bag now hosts a shiny new D90 kit:-)
Tuesday, January 27, 2009
Once you go (Nikon) you dont go back!
I had never thought this would happen to me. I have always been a proponent of good skills and not just the tools.
But the moment I tried this Nikon D90, I knew I had been bitten. I even tried a more expensive Canon 50d for a while after that... but I HAD to go back to Nikon. So now, after 4 camera bodies, I am at peace with a D90. It produces colors and textures that dont need any post-processing to evoke the critic in me. I love them as they are.
You did it Nikon.
But the moment I tried this Nikon D90, I knew I had been bitten. I even tried a more expensive Canon 50d for a while after that... but I HAD to go back to Nikon. So now, after 4 camera bodies, I am at peace with a D90. It produces colors and textures that dont need any post-processing to evoke the critic in me. I love them as they are.
You did it Nikon.
Monday, January 26, 2009
Nikon D90 Pictures I
Ok so my replacement D90 is here. And I am in seventh heaven:-)
Here are a few pics I just took:
Here are a few pics I just took:
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