October 3, 2015 at 8:11AM

0
You voted '-1'.

Is Sigma 17-50 f2.8 sharp enough for GH4 ? (+metabones)

Hi
Panasonic GH4 for shooting video is gonna be my new my camera very soon. I'm wondering what I should do about the lenses...
Should I buy a new one like Olympus 12-40mm 2.8 or buy a Metabones and use my Sigma 17-50 f2.8 with IS?
I've been watching at some videos in youtube/vimeo and I really have the feeling that Sigma is not sharp/quality enough... am I right? It must be the compression used to uploaded? Any opinions about that?
Thanks!

5 Comments

So sorry for the duplicate post...

October 3, 2015 at 8:16AM

3
Reply
Josep
Filmmaker
93

Micro 4/3 lenses are sometimes too sharp for video work, so you have to find a way to soften their image. ( setting sharpness and contrast to -5 are a big help )

Non-Micro 4/3 lenses can produce a really nice look for video, which is not too sharp or too soft. ( I own 8 Nikon AI-S lens and they are great for video work )

It's a completely different story with still photography where autofocus and the extra image sharpness are useful in producing the best clean and sharp photo.

October 3, 2015 at 8:49AM, Edited October 3, 8:53AM

8
Reply
Guy McLoughlin
Video Producer
32249

So, from this point of view I guess that that a meatbones is a good deal since is almost half price than Olympus 12-40mm. And I can use my 17-50 and I with IS.
About sharpness... shooting in 4k and downscaling to HD I guess it will provide me and increment of quality image, right? Or even add a sharp filter will do the trick as well?

October 3, 2015 at 9:19AM

0
Reply
Josep
Filmmaker
93

Downscaling from GH4 4K to HD will give you an extremely sharp HD image ( much sharper than a typical DSLR camera ) that will have zero moire in the HD image. Other than the time it takes to convert from 4K to HD, there are no real drawbacks.

October 3, 2015 at 4:42PM

3
Reply
Guy McLoughlin
Video Producer
32249

Thank you so much, I'm gonna get the metabones for now... anyway, is gonna be a big improvemnet, since Im still working with a Canon 550D

October 5, 2015 at 4:19AM, Edited October 5, 4:19AM

3
Reply
Josep
Filmmaker
93

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