I know - you dont like it as it doesnt have IS but I've got a steady hand and I'll manage somehow.OK, thats enough now, OK!![]()
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I know - you dont like it as it doesnt have IS but I've got a steady hand and I'll manage somehow.OK, thats enough now, OK!![]()
Tell me, if I buy from B&H, what taxes do I pay? Is it vat and import taxes? And if I pay with visa, do they also charge extra for international payments?
Its definitely camera shake - light conditions are relatively lowish - late afternoon pictures of birds... Not able to use tripod as pictures are 'off the cuff'. The fifty might be a solution for people shots but I prefer to use a Zoom.
Have you ever heard/seen that 55 to 250 I linked to? Wonder if the price is right- I have e-mailed them. It might be a replacement for my 70 to 300 tamron.
I just bought a EF 70-200mm (f/4.0L USM) . . . . and I cant wait for it to arrive!![]()
There's way more involved that resolution. Your camera compresses the image to jpeg (mostly). jpeg is a lossy format, which is ajustable. For an example, take one of your images, one with lots of detail, open it in Photoshop or something similar, save it as a jpeg. When given the option set the quality to the lowest number. Now compare the result to the original picture. The resolution is still the same, but the quality isn't.
I'm willing to bet most compact cameras use a fairly low quality compression. Here's an example.
Compare the shots taken with a Sony DSC-W80 7.2MP camera:
http://www.dpreview.com/reviews/sonyw80/page5.asp
with the same shots taken with a Pentax K100D 6MP camera, a camera which is heavily critisized for it's poor quality image conversion:
http://www.dpreview.com/reviews/pentaxk100d/page17.asp
Now, lets cut out the image conversion, something the compact can't do, and shoot in raw with the same Pentax (lower res than the compact, right?):
http://www.dpreview.com/reviews/PentaxK100D/page20.asp
See the difference? Compact cameras have come a long way, but in terms of image quality they're nowhere near DSLRs. Which is why they're cheaper.
If you're still not convinced, here is a 640x480 image taken with my camera phone, and here is the same one with a Sony DSC-T100, also at 640x480. This is admittedly at the lower end of the argument, but the same thing apply. Resolution takes you only so far. What the camera does with the image after that is what sets them apart.
You're right, but there is more to it than just the processing. You need to take into account the full chain of the imaging process.
1. Lens - a poor lens will never provide good quality images. This is the downfall of many compact cameras and camera phones.
2. Sensor - resolution and size. Many people look only at the megapixel rating of a sensor, but there are many other things to look for. The higher the resolution, the smaller the pixel sites on the chip. Smaller pixel sites (everything else being equal) mean lower signal to noise and thus more noisy images. The other problem with smaller sensors with high pixel numbers is the strain that is placed on the lens' resolving power. Smaller pixel sites need a lens that can resolve very fine detail - again this is a problem with many compact cameras. Thus a 6 million pixel DSLR with a APS-C size sensor has lower requirements of the lens than a 6 million pixel compact camera with a 1/4" sensor.
3. Sensor technology and colour filter. This is more theoretical and depends on the type of camera. Suffice to say that for higher quality there is a shift to CMOS from CCD sensors. There are also a variety of sensor filter arrays. Google "Bayer pattern", "Foveon X3", "RGBE" and "Kodak panchromatic" for some interesting stuff.
4. Imaging Engine - as per koffiejunkie's post. But the noise reduction process has a big impact on final PQ.
5. Compression algorithm (if any)
6. Decompression algorithm (if any)
7. Post processing algorithms (if any)
8. Final Recompression algorithm (if any)
6. Final playback/print method.
Yeah - its my first bit of L quality lens and I'm really looking forward to it. I have to take my broken 400D in on Wednesday but fortunately my parents have also agreed to carry over a replacement body.You won't be dissapointed with the quality so long as the light is good or you use a tripod.
...
Will take a 1.4x extender to make a F5.6 90-280mm lens (and retain autofocus on non-pro bodies).
Thanks - I'm really looking forward to its arrival next week.Hi there
Nice new lens. You wont regret that focal length. Its great for family use. I have an old 70 -210 f4 minolta and I love it. Slow AF but great colours and creamy brokeh. Nice range, probably half my shots are with this lens.
Still waiting on Canon SA to give me a repair quote to pass on to the insurance co.bwana, any news on your 'old' 400D? Or is the new one an insurance replacement?
I'll think about itWhen you get your new lens you must post some pics for us.
...so it feels a bit odd not having a camera atm.![]()
Yeah - its my first bit of L quality lens and I'm really looking forward to it.
Are the differences between the 40D and the 400D enough to justify such a huge price difference?
Agreed, that's why I'm thinking of going that route.A decent lens will follow you from body to body.
Not really if you can buy at least two 400D's for the price of one 40DFor someone as clumsy as me, the weather seals will be worth every penny. Other than that there's no real other reason for considering it - not for me at least.
Not overly impressed with Pentax - my mate just bought one (I think K100D Super - if that sounds right) and it felt so plastic.
Not really if you can buy at least two 400D's for the price of one 40D![]()
Not overly impressed with Pentax - my mate just bought one (I think K100D Super - if that sounds right) and it felt so plastic.
I'm not talking rands but US$. Body for a 40D is $1300 vs $520 for the 400D. B&H delivers to the UK tooTrue but those lenses I'm looking at are just under a kg each plus the weight of the camera - I don't want to carry more than one when I go travelling (which is inevitably where I'll need the protection)... Besides, I'm not paying in Rands - £300 odd extra is saveable![]()
I'm not talking rands but US$. Body for a 40D is $1300 vs $520 for the 400D. B&H delivers to the UK too![]()