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EOS 50D - 6.3 fps, 15 mp, -Digic 4-, Hi-res 3" LCD
Athiril 
27/8/08 4:47:04 PM
Titan

Smaller nm cpu process contributes to CMOS technology, as its the same stuff.

Better materials, less space between photosites helps not having to reduce photosite size nearly as much, lower power usage per photosite, all these things can improve signal to noise ratio, which is all you need to do, then seeing which lenses still out resolve the sensor.

For example, Canon's 40/50mp sensor designs in dev for 2009/2010 has been said they are trying to make use of almost 100% of the physical area (basically no space between photosites), with a much lower power usage and new materials.

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stadl 
27/8/08 6:56:31 PM
SuperHero
Titan


The specs of the 50D looks good, but I know a few canon shooters who will be more interested in the 18-200 lens.

I know the 28-300L is there but that lens is rather expensive being an L series - approx $3500, and 28mm isn't wide enough to start on a crop sensor. The new lens is consumer grade and will need to be sub $1k to have a market share.

Although I think canon's decision to not put USM on it will be a mistake.

Consumer 11x zooms are very practical for some users of DSLRs and completely useless for others - it depends on your needs.

I like my 18-200VR as a default lens to have on the camera. If I take the camera with 1 lens for a day, that's usually the lens that goes with it. Sure I could make do with a P&S (if I owned one) for most of the fun shots it's used for. But any 11x zoom P&S will not be as quick to use, especially under manual settings, won't have the frame rate or other advantages, and will still be a larger compromise in quality than a DSLR with 11x zoom on the front.

I'm missing mine a little - because it's on loan with my old body for my sister to practice with before she goes on holiday with them. But I have the range covered - just without the convenience.

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Athiril 
29/8/08 3:09:25 PM
Titan

50D samples, ISO 100, 400 and 1600, they also tell you what lens and aperture using.
http://web.canon.jp/imaging/eosd/eos50d/eos50d_sample-e.html

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Quote by gummybear
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battlefield_gir 
29/8/08 3:43:51 PM
Titan

research shows that body starts at 1.3k

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Mademan 
29/8/08 5:35:12 PM
Master
the only compromise of a compact is high iso performance.


Edited by Mademan: 29/8/2008 5:52:12 PM

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Athiril 
29/8/08 6:02:33 PM
Titan

Quote by Mademan
the only compromise of a compact is high iso performance.


Edited by Mademan: 29/8/2008 5:52:12 PM



This is lolworthy.

Low iso on a compact has plenty of noise.

The lens can not resolve down to the sensor density, even if it could, the aggressive noise reduction removes fine detail.

The lens is usually made cheaply, as compacts need to not be high priced.

Shooting rate and manual controls arent that great.

Many compacts provide a bulb mode, but no where to plug n a shutter release.

Plenty more too :P

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Quote by gummybear
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Mademan 
2/9/08 3:26:58 PM
Master
Your face is lolworthy.

Depends on what camera, and whether shooting raw. a dslr will give you jpeg artifacts if shooting jpegs.

DSLR's can have crap lenses too. Usually they're labelled 18-200, or 'kit'.

Manual controls are fairly rubbish on base model DSLR's.

Cheap doesn't always mean bad, for those with no money or short attention spans.

P.S. sample gallery is up on dpreview for the 50D. tbh I was left a little underwhelmed.


Edited by Mademan: 2/9/2008 03:27:53 PM

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stadl 
2/9/08 4:27:36 PM
SuperHero
Titan


Every camera is a relative compromise in some respect.

Pro 35mm FF DSLRs compromise resolution and dynamic range to achieve portability compared to a MF camera.

Yet compared to a compact, a D3 or 1Ds compromises on portability to achieve better quality.

The best bit is that today's compromised levels of performance typically exceed the benchmark for that feature from only a few years ago.

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...so brilliant in fact, that by simply harnessing the power of one live frog, it.. it.. uhh.<poke> <poke>
World domination has encountered a momentary setback. Talk amongst yourselves.

Waffles, Lots of Waffles... And Chips...

Athiril 
2/9/08 4:32:19 PM
Titan

Quote by stadl
Every camera is a relative compromise in some respect.

Pro 35mm FF DSLRs compromise resolution and dynamic range to achieve portability compared to a MF camera.

Yet compared to a compact, a D3 or 1Ds compromises on portability to achieve better quality.

The best bit is that today's compromised levels of performance typically exceed the benchmark for that feature from only a few years ago.



I dare say the 1Ds Mark III out strips MF film for image quality (resolution vs noise/grain).

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Quote by gummybear
hrm yes, where to find a girl.......



fliptopia 
2/9/08 5:31:22 PM
Hero
Guru


18-200 is great for general use when you are out somewhere and you aren't going to get perfect lighting etc. Out with kids you dont really want to be swapping lenses depending on how far away they are from you.

I have a compact too, but when it doesn't want to focus quite where I want it I dont have any override on it.

Horses for Stuff.

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stadl 
2/9/08 10:43:50 PM
SuperHero
Titan


Quote by Athiril
I dare say the 1Ds Mark III out strips MF film for image quality (resolution vs noise/grain).



But what about compared to a 39 or 50MP hasselblad?

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...so brilliant in fact, that by simply harnessing the power of one live frog, it.. it.. uhh.<poke> <poke>
World domination has encountered a momentary setback. Talk amongst yourselves.

Waffles, Lots of Waffles... And Chips...

Athiril 
3/9/08 8:06:24 AM
Titan

Quote by stadl
Quote by Athiril
I dare say the 1Ds Mark III out strips MF film for image quality (resolution vs noise/grain).



But what about compared to a 39 or 50MP hasselblad?



Sell your car and start catching the bus?

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Quote by gummybear
hrm yes, where to find a girl.......



g__day 
7/9/08 10:20:52 PM
Hero
Titan



Some things I'd love to know about this (for astro-photography):

1. Can Remote LiveView be commanded to slow the fps from 30 (fixed) from 30 down to say 0.1 fps (be great for low light shot set-up)

2. Can you have an option to buy them with better IR filters (Astronomic or Hutech for example) to cut Sodium, Neon and Mercury but pass Hydrogen Alpha and Oxygen III without shifting primary colours?

3. What is the pixel well depth (before blooming occurs)?

4. What is the Quantum Efficiency of the chip?

5. Could you get a mono version (no Bayer mask)?

6. Could they make a version or option to place a Peltier cooler next to the CCD (some folk do this as an after market add on to cool the CCD down 30 - 40 degrees)

7. Can it store and match dark frames for long bulb shots?

These cameras are starting to get real interesting - at USD $1,399 is a fraction of the price of a 16 bit mono Fingers Lake Instrument, S-Big or Apogee astronomy camera - but with alot of image processing you can get some very good results from a modified Canon DSLR.


These cameras

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Athiril 
7/9/08 10:29:36 PM
Titan

1. controlled via a computer you can, or with a remote timer, you tell it how many shots to take, set exposure length and interval between shots.

2. You can have the IR filter replaced, or buy the 20Da which was made for Astrophotography

3. No idea!

4. No idea!

5. Good luck! Shoot black and white film, with Red, Yello and Green/Blue or just R, G, B sets, and combine them, 4x5 camera, NeoPan Acros 100 :)

6. They have those, there are mods for them

7. Not sure.

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Quote by gummybear
hrm yes, where to find a girl.......



g__day 
7/9/08 10:53:48 PM
Hero
Titan



No - I want Remote View to frame the shot in near real time - so a slower continuous shot would nice, or I could use it to auto-guide before tacking the main shot.

Yes I remotely capture actually - its all computer controlled - pointing, tracking, drift correction, focus, image capture (typically 3 - 12 minute shots - rarely go past 20 minutes due to light pollution).

Personally I love the Canon DSLR's for astrophotography (far less amp glow) I just wish IR filter choice came direct from the manufacturer.

The 20Da was a limited run 3-4 years ago - very hard to get now and superceded by later models. Far easier to pay $200 and get a high end model modded.

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Talent + Integrity == Atomic

Athiril 
7/9/08 11:42:18 PM
Titan

The IR filter on my 30D is hectic.

I tried a 2 linear polarisers and 1 linear, and 1 cpl, with max polarisation against each other to block all light, and i was doing upwards of 5 minute exposures in high iso in the middle of the day (at various apertures, f/1.4 to f/16) and i was getting crap all :/

No IR photography for me without modding or buying a second hand 350D and modding ;_;

Ive just shot a roll of EIR (ektacrome infrared) I got one roll left in the fridge, I think these are the last in the country, brought them back with me from sweden.

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Quote by gummybear
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