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-   -   Spin-off...Digital Converter and lens sharpness. (https://e-group.uk.net/forum/showthread.php?t=50169)

Dave in Wales 25th March 2019 10:56 AM

Spin-off...Digital Converter and lens sharpness.
 
I talking here about the incredible sharpness of the 12-100mm and my future use of the 2x DC.

The DC seems to be frowned upon by most.
I have used it on occasion, I shoot RAW+JPG so I have both images to fall back on.

The L-fn button on the lens is dedicated to DC, so I can see it getting a lot more use.

That means I now have a 12-200 superbly sharp lens, or in old money a 24-400....can't be bad...:D

Phill D 25th March 2019 11:11 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
Only if it works on the 12-100 lens. My guess is that it wont as the 1.4x doesn't.

Olybirder 25th March 2019 11:30 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
Quote:

Originally Posted by Phill D (Post 476404)
Only if it works on the 12-100 lens. My guess is that it wont as the 1.4x doesn't.

I think Dave is talking about the camera's digital converter Phill.

Ron

sapper 25th March 2019 11:45 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
Quote:

Originally Posted by Phill D (Post 476404)
Only if it works on the 12-100 lens. My guess is that it wont as the 1.4x doesn't.

DC, Digital converter?
It works for me, better than a crop I reckon.

Ulfric M Douglas 25th March 2019 07:45 PM

Re: Spin-off...Digital Converter and lens sharpness.
 
If they've tweaked it to be better than a crop then they're onto a winner.
The older cameras just give me basically a crop so I never considered it again.

Ross the fiddler 25th March 2019 10:23 PM

Re: Spin-off...Digital Converter and lens sharpness.
 
Quote:

Originally Posted by Ulfric M Douglas (Post 476439)
If they've tweaked it to be better than a crop then they're onto a winner.
The older cameras just give me basically a crop so I never considered it again.

It is a crop & upscaled. I feel it does it well & as Dave in Wales said, saving JPEG & RAW gives the best of both options. Also, if the DTC is left on by mistake there is always a wider backup view in the RAW file too. :rolleyes: Of course, the DCT composition might not be as ideal as it could have been & then the RAW allows more latitude there in post.

blu-by-u 26th March 2019 06:26 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
At the very least, there is no increase in f stop with the Digital crop :D just a tat smaller file size :D

Phill D 26th March 2019 06:59 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
Ah yes sorry, read that post too quickly :o
I like the x2DTC too. I can't usually see any difference to a post crop but it does allow a greater focus on composition and metering from the area of interest. I've certainly done some moon shots with it that I prefer to a simple crop.

Ulfric M Douglas 26th March 2019 07:46 PM

Re: Spin-off...Digital Converter and lens sharpness.
 
Quote:

Originally Posted by Phill D (Post 476454)
I've certainly done some moon shots with it that I prefer to a simple crop.

It would be useful to see one of those (both files) : with a view to upscale +selective sharpen the crop and see which is better...

Phill D 26th March 2019 08:31 PM

Re: Spin-off...Digital Converter and lens sharpness.
 
I'll have a look back Ulfric but i'm not very good at labelling my shots so might not be able to find the comparison I did :o From memory though it was a very very close run thing and slight variations in atmospherics between shots was enough to make the best choice change round.

drmarkf 26th March 2019 09:42 PM

Re: Spin-off...Digital Converter and lens sharpness.
 
I find the DTC really useful for identifying incoming things like birds, aircraft and assorted wildlife before they’re close enough to press the shutter.

blu-by-u 28th March 2019 03:14 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
It would be even better if they allow that Digital Crop rectangle to be moveable (like the magnification assist) instead of fix to the middle.

Ulfric M Douglas 28th March 2019 06:40 PM

Re: Spin-off...Digital Converter and lens sharpness.
 
No worries Phil.
I'd be very keen on a digital-zoom that did great works instead of a crop, but I'm not convinced yet.
Maybe I'll test it with my card in the camera shop next time : which camera would be best to try?

Phill D 29th March 2019 10:53 AM

Re: Spin-off...Digital Converter and lens sharpness.
 
I guess it depends on what cameras you have or intend to get Ulfric.


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