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Forum: Pentax SLR Lens Discussion 11-13-2018, 07:57 AM  
How 4K looks using 18-135?
Posted By UncleVanya
Replies: 18
Views: 993
OK - breaking this down. The OP said he wanted WOW from downsampling 24mp to 4K, he's also cropping to 16:9 which means far corners are likely going bye bye. He also said his main use will be between 18-24mm, but he also indicated a desire to do wide to tele. So far so good.

I think either the 16-85 or 18-135 can peform these miracles given the baseline info. The data is being downsampled to 4K, the extreme corners are going to be cropped away most of the time, the main focal lengths (not the only ones) of interest are 18 and 24mm. On APSC 85mm is tele, but 135 is more tele - and it isn't clear how much tele is needed here.
Forum: Pentax SLR Lens Discussion 11-13-2018, 05:39 AM  
How 4K looks using 18-135?
Posted By UncleVanya
Replies: 18
Views: 993
Lol. That's true enough.
Forum: Pentax SLR Lens Discussion 11-12-2018, 08:10 AM  
How 4K looks using 18-135?
Posted By UncleVanya
Replies: 18
Views: 993
You said it better than I did... I was hoping you'd pop in.
Forum: Pentax SLR Lens Discussion 11-12-2018, 06:10 AM  
How 4K looks using 18-135?
Posted By UncleVanya
Replies: 18
Views: 993
I strongly disagree. At 18-24mm the 18-135 is very strong. The lens really shines @24mm, there isn't much room for improvement. (Unless you need wider aperture.)
Forum: Pentax SLR Lens Discussion 11-11-2018, 08:46 PM  
How 4K looks using 18-135?
Posted By UncleVanya
Replies: 18
Views: 993
Soft corners on the 18-135 are mainly seen above 70mm. It really depends on what the subject matter is. When I use the lens I'm above 70 mainly when there is a central subject and the corners are mostly background. So I rarely notice the issue. A point to consider is that the head to head tests of the 16-85 vs the 18-135 gave the nod to the 18-135 over cropping the 16-85 - so what really matter if wider or more telephoto is more useful.
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