Is the quality gap between DSLRs and non-DSLRs narrowing?

[SWriverstone]

Thanks for the good comments Loupey.

Seems we are talking about semantics here.

I think it goes beyond semantics to image quality: in good light and at relatively low ISOs...and especially when the final images will be reduced to 72dpi, 800x600 for the web...many admit the image quality differences between a high-end prosumer and low-end DSLR are ridiculously small.

So in other words, it's not always accurate to assume a DSLR always provides better IQ than some high-end prosumer cameras.

To me, an SLR has to have an optical viewfinder, a reflexing mirror, and interchangeable lens capability. Any camera that does not have all three of those features are not SLRs in my book.

I'm interested by how people place such a high premium on a TTL viewfinder, especially because I'd be willing to bet a large number of DSLR users always use autofocus. So if you're using autofocus, what is the inherent advantage of a TTL viewfinder? (Besides just looking nice.) High-end prosumer cameras use autofocus too. (Though I admit most don't have controllable focus points.)

As for more control with dSLRs, I agree with what others have mentioned. I have used several digital non-SLRs that were advertised to have full manual controls. Sure they have them, but using them when you need to use them is a completely different matter. I want 4 controls immediately at my disposal without taking my eye out of the viewfinder: 1) shutter speed control, 2) aperture control, 3) ISO control, and 4) focus control.

I think historically this has been true...but the designers of non-DSLRs have made some pretty big leaps in those cameras' interface designs. you should try the Canon SX10. I was impressed at how easy it is to access each of the controls you mentioned...without ever taking my eye away from the viewfinder. Canon accomplished this by adding a smoothly-turning rotary dial around the 4-way button that falls comfortably right underneath your thumb. (Just 4-way "up" and use the dial to adjust shutter...and 4-way "down" and use the dial to adjust aperture...piece of cake!)

Another advantage offered by an electronic viewfinder is that improvements in interface design can make adjusting these controls easier. On the SX10, for example, when you adjust either shutter or aperture, a beautifully-designed horizontally-sliding scale suddenly appears across the lower-third of the viewfinder---it's actually superior to squinting at the tiny LCD digits across the bottom of most DSLR viewfinders.

Scott

[Loupey]

... in good light and at relatively low ISOs...and especially when the final images will be reduced to 72dpi, 800x600 for the web...many admit the image quality differences between a high-end prosumer and low-end DSLR are ridiculously small...

I agree with this comment, but...

You've picked an extremely narrow and low-end part of the spectrum here - a part that can easily be handled by most, if not all, cameras being sold today (possibly even by some cell phone/cameras).

I think it would be erroneous to take this specific scenario and scale it up beyond the special set of circumstances that you have stated.


Like saying that because any car can take me down to the market and back, there is no difference between cars.

[Loupey]

Ultimately, the only person who can answer your question adequately is you.

Because we are of all different skill levels drawing on different shooting experiences and using different equipment, the only way to remove the differences is by trying it yourself.

I have tried and I cannot get a non-dSLR to perform at the level of quality and performance that I can from a dSLR.

So for me, the answer to your question is: no.

[SWriverstone]

Just for reference, here are some shots taken with my (now ancient) Canon S2-IS:















Now, someone might be able to pick these part at the pixel level, but you'd have to be pretty absurdly picky to say these aren't great photos (I credit the camera, not myself!). And you can also see there is plenty of DoF in these photos.

So again...I don't question that DSLRs are better than the camera that took these pics...but frankly, I don't see a lot of pics from DSLRs that leave these shots in the dust!

Scott