Tagged with sharpness - Personal View Talks

GH2 Stills Problem

jondshank — Mon, 24 Oct 2016 13:00:10 +0000

Recently I started taking stills with my gh2 in addition to using it for it's AMAZING video.

When I manually focus, whether through the LCD or LVF just before the image is in focus to my eye it looks soft and dreamy more so than out of focus, and beyond the subject it will start to actually look out of focus.

I took some when it actually looked IN FOCUS and I feel like it just doesn't look as sharp as my old Canon 60D (By quite a bit to be honest)

I'll post a picture so you can see. I shot this in manual, f/2.8 at 70mm on a tripod with around 160 shutter speed and 200ISO. I'll post a before and after grade.

Before: http://imgur.com/a/H3bPw

After: http://imgur.com/JjxF8ZD

Do you think this is an operator, lens, or camera problem?

Also please do critique my grade, I'm relatively new to all this.

Why people on a budget are not using the GH2?

JuandiAznar — Sat, 16 Apr 2016 17:49:43 +0000

Hi everybody. First of all I would like to thanks Kiselev for his amazing work and Driftwood, who developed the patch I use. I start this topic as a conversation table, maybe kinda philosophic. I was using a Canon 600D but dirty look and incredible banding frustated me everytime (even being more a content guy that technic super sharpness/film look guy) The thing is, I grabbed a mint Pana GH2 with kit lens with less than 4.000 actions for 200 euros. This camera amazes me. Yeah, yeah, I know, 8 bit 4:2:0, but to me is a STEAL for 200 euros. It just have a very nice VIBE, a great noise pattern that doesn't bother me that much, a dynamic range that it's just ok and the amount of sharpness necessary (even with kit lens). To me, the camera is a tool, I paymore attention to my histories, so, if a camera just do his work for a little money, it's very ok. The thing is that this camera is a gem, don't know why filmmakers on a budget like me doesn't get this stuff for that little money instead of Canon Txi, I think it would be like my case, mainstream opinions makes you buy the Canon (it's true that they got their advantages like sensor, colour gammut...) GH2 it's just awesome.

Simply I wanted to thank the people who developed the hack and the patches and say to the world how much I like this camera, it's unique, go grab one and feel his vibe.

Greetings.

Mir-1 M39 Bussel Edition very blurry wide open

hilburger — Mon, 11 Aug 2014 05:39:13 +0000

Hi everybody!

I have got a Mir-1 M39 Brussel Edition on my BMPCC using a (Zenit)M39-ring -> M42 -> MFT adapter.

The Mir-1 is blurry like hell using it wide open (see image, sorry for the ugly shot, it's just for deomnstration)

As soon as I close the aperture a huge bit it becomes sharper and usuable.

The later M42 Mir-1B I have got looks great, no blurred areas at all.

Do you think the lens has got some problems or are ALL silver M39s Mirs so bad?

Thank you & best regards, Thomas

Sharpness and aperture

Vitaliy_Kiselev — Wed, 16 Nov 2011 05:26:50 +0000

The truth is wide-aperture primes are usually not exceptionally sharp wide open. They appear to be sharper than they really are because the in-focus subject stands out so much from everything else (assuming the subject is near the center) given the narrow depth of field wide open. But if you measure the absolute resolution numerically, a prime lens shot at f/1.4 is no sharper (and in many cases less sharp) than a top quality zoom shot at f/2.8.

Let’s look at a very good wide-aperture prime, the Canon 35mm f/1.4 “L” lens. Here are the Imatest results for fifteen Canon 35mn f1/.4 lenses measured at both f/1.4 and f/2.8 apertures. (The number on the vertical axis is the MTF 50 weighted average for the entire lens, that on the horizontal axis is MTF50 at the center point).

More lenses compared:

Small conclusion:
1.Some lenses benefit greatly from being stopped down, others very little.
2.For those lenses that do benefit, stopping down just to f/2.0 provides the majority of resolution improvement. The difference between wide open and f/2.0 is generally much greater than the difference between f/2.0 and the maximum resolution.
3. Getting the edges and corners sharp requires stopping down to at least f/4 for most wide-aperture primes, and some really need f/5.6. Stopping down to f/2.8 may maximize center sharpness but often makes only a slight difference in the corners, at least on a full-frame camera.
4. None of the lenses performed any better after f/5.6 (for the center) or f/8 for the corners. Most were clearly getting softer at f/11.

Read full article at: http://www.lensrentals.com/blog/2011/11/stop-it-down-just-a-bit

Point and Shoot Basic Question

ragnar — Sun, 12 Jan 2014 23:30:43 +0000

Is it true that if I zoom in a bit on my point and shoots cams that my images will be a bit sharper? The range of my Canon S110 and S100 are 24mm to 120mm. So would, say 60mm produce a sharper image than either 24mm or 120mm?

Also, do these point and shoot cams also have an F-stop sweet spot like my Lumix 100-300 lens where between f5 or f8 is its sharpest. Is that the same for point and shoots?

Harold House

Aerial GH2 wide shots, suggest settings

robbie75vr — Sun, 15 Apr 2012 19:26:57 +0000

Hi guys,

I need your suggestion about what patch to use for low altitude aerial footage, filmed with panny 7-14, subjects are most of the times under very contrasted sunny light, most of the times buildings or detailed nature..

I need low contrast and high latitude to color grade in post and most of all I need the lowest amount of sharpness possible, or not at all would be perfect.

What patch and settings do you suggest me ? (24p or 25p is good)

Thanks

Choosing set of lenses for micro 4/3

rajamalik — Wed, 01 Feb 2012 03:53:26 +0000

i am planning to buy some low light lens for my Panasonic gh2.

i looking for a wide angle 4mm 6mm 8mm 9mm 10mm 12mm 14mm / mid range 20mm 25mm 30mm 35mm 45mm 50mm 55mm / long range 70mm 80mm 85mm 90mm 105mm any of these with Apature f 2.8 f 2.5 f2.0 f1.8 f1.4 f1.2 f1.0 f0.95 f0.8 f0.5...

looking for superb sharpness and bokeh with low light.

i have some of these lenses in mind...

3 of them from ebay.

do they really work well with low light video anyone tested???

http://www.ebay.com/itm/Canon-77mm-f-1-lens-Micro-4-3-G3-GF3-EP3-EP2-/220882784644?pt=Camera_Lenses&hash=item336da3d184#ht_500wt_1180

http://www.ebay.com/itm/Panasonic-GF2-G2-EP2-EPL2-55mm-F-1-0-Portrait-lens-/320733439303?pt=Camera_Lenses&hash=item4aad33e547#ht_4263wt_1163

http://www.ebay.com/itm/New-Voigtlander-NOKTON-25mm-F0-95-micro-Four-Thirds-GH-/180799576934?pt=Camera_Lenses&hash=item2a187e9b66#ht_500wt_1180

lets discuss,...a complete coverage from 4mm to 105mm less than Apature f2.8 to f0.8?????????

How To Improve Image Quality From Soft Lenses

apefos — Wed, 11 Jan 2012 13:52:05 +0000

The challenge: to use the lenses wide open to get the most shallow dof in GH2. But this makes the image soft because almost all lenses are soft wide open. So what is the solution? Watch the video tutorial on vimeo