Author Topic: a99II  (Read 16201 times)

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Offline AScot

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Re: a99II
« Reply #30 on: December 29, 2016, 09:50:08 PM »
Brian, the x1,4 and x2 Sony tele-convertors are white and only work with the white G lenses, Minolta or Sony. You can buy 3rd party TCs but I would stay away from the x2 TCs as quality really drops off.

All full frame lenses used on an APS-C camera A77/A77II etc add 50% to the focal length, a 300mm will be 450mm. Its due to the sensor area being approximately half the size of a full frame sensor (It's actually slightly less than half the area). That's why we call it a 1.5 crop sensor.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline AScot

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Re: a99II
« Reply #31 on: December 29, 2016, 10:18:13 PM »
This may seem like a silly question but... shouldn't that problem be moot when using focus peaking? Since we are looking at what the imaging sensor ACTUALLY "sees" is "in focus"?

It is moot when you are using Direct manual focus (DMF) as the camera performs it's auto focus then drops into manual focus and the user adjusts it to compensate for focus problems using the focus peaking. However focus peaking in AF mode does not compensate for a camera or lens that are out of adjustment. Focus peaking in MF mode does. The proof? Why would Sony supply the focus micro adjust feature on the A77 if it was not needed. :)
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline BrianNZ

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Re: a99II
« Reply #32 on: December 30, 2016, 01:00:08 AM »
thank you all so much - can understand it a bit better now.  i have always struggled to get good focus with the SAL70-400m, and this probably explains why. Obviously i should have done this with my A77.    Will have a play with my A99II ,  which should only be a few days away now  (as i write this its apparently in the air somewhere between Singapore and NZ)
Sony A700, Sony A77, CZ 2.8/24-70, Sony 4.5-5.6/11-18, Sony G 4-5.6/70-400SSM, HVL-F56AM

Offline CHOLLY

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Re: a99II
« Reply #33 on: December 30, 2016, 04:53:31 AM »
I'll ask again; does focus peaking negate the need to microadjust?
There are people who actually think LENS stabilization is better than sensor shifting!

Offline REX (aka TG)

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Re: a99II
« Reply #34 on: December 30, 2016, 07:04:47 AM »
I'll ask again; does focus peaking negate the need to microadjust?

Microfocus  Adjustment is valid only for AF module. Peaking colour focus is valid only for human eye or contrast detect from camera.

So the peaking colour from my understanding it has to do with contrast detect focus and the a99ii or all SLR/SLT from Sony they use only phase detect focus and no contrast.

The Mirroless use contrast detect focus and that's why they don't need any MF adjustment. You have the option in menue for MF adjustment but only with A mount lens on mirrolles and the use of LA2/LA4 adapter
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Offline BrianNZ

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Re: a99II
« Reply #35 on: December 30, 2016, 07:14:44 AM »
i use peaking colour a lot,  it is great for landscape or non moving pics, however i do find it not as effective for instance when trying to take pics of flying birds.  What has been said above  probably explains it - and if im thinking along the right lines lens correction will help with the flying bird scenario.
Sony A700, Sony A77, CZ 2.8/24-70, Sony 4.5-5.6/11-18, Sony G 4-5.6/70-400SSM, HVL-F56AM

Offline REX (aka TG)

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Re: a99II
« Reply #36 on: December 30, 2016, 07:35:52 AM »
As BrianNZ Peaking colour is not so accurate and I usually use after focus peaking focus magnification to adjust exactly the focus.

This is a reason to have the peaking colour level at low and not high to minimise the tolerance.

On A99II I assign the lens focus hold button to magnification and very easy I have focus magnification with a press of this button.

Focus hold button is pressed with the thump finger and other thee fingers rotate the focus ring and the point finger is no the lens. Very simple and very easy.

If your lens support full time DMF (70-200/f2.8-300G/f2.8-500 f4 )then the situation is more easy since you are in any Af mode turning the focus ring the camera revert to MF with focus peaking.
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Offline AScot

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Re: a99II
« Reply #37 on: December 30, 2016, 01:08:30 PM »
This may seem like a silly question but... shouldn't that problem be moot when using focus peaking? Since we are looking at what the imaging sensor ACTUALLY "sees" is "in focus"?

It is moot when you are using Direct manual focus (DMF) as the camera performs it's auto focus then drops into manual focus and the user adjusts it to compensate for focus problems using the focus peaking. However focus peaking in AF mode does not compensate for a camera or lens that are out of adjustment. Focus peaking in MF mode does. The proof? Why would Sony supply the focus micro adjust feature on the A77 if it was not needed. :)

Cholly, I answered your question a few hours after you asked it.
Sony A7, A850, A77, A700 || Sony>> 70-300G, 28-75 f2.8 SAM, 16-80CZ, 50 f1.4, FE 28-70 OSS, FE 24-70CZ f4 OSS, LA-EA4 || Minolta>> 300 f4 G HS, 200 f2.8 G HS, 100 f2.8 (D) Macro, 50 f1.7, 28 f2.8, 28-135 f4-4.5, 70-210 f4, 500 f8 Reflex, TC x 1.4 HS, TC x 2 HS. || Sigma 21-35 f3.5-4.2. || Tamron SP 24-135.

Offline CHOLLY

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Re: a99II
« Reply #38 on: December 30, 2016, 02:44:19 PM »
So... it depends on the application.

If you are doing static shots like landscape or portraiture, the focus peaking works just fine on the A99II. Fast action like Birds In flight or sports however... not so much. I say this because the autofocus on the A99II can either be CDAF from the image sensor or PDAF from the dedicated AF sensor and you have the ability to switch between the two.

The need to microadjust a lens is due to the microscopic difference in the distance of the light paths between the imaging sensor and the autofocus sensor, which is only a problem when you use both together to record an image.

So MF Adjust is a great feature Sony offers us to correct for this problem... but with Focus Peaking we have another option and I may be wrong, but I'm thinking the hybrid AF offered by the A99II gives us the flexibility to choose.
There are people who actually think LENS stabilization is better than sensor shifting!

Offline REX (aka TG)

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Re: a99II
« Reply #39 on: December 30, 2016, 09:55:42 PM »
From my understanding and investigation on MF adjustment.

If the center value is the same as one of the corners then you can give the same value to the rest corners.

For example center is (-4) and left up corner also (-4) then the rest 3 corner must get the same value other wise your focal plane sensor is bent :)
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Offline REX (aka TG)

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Offline REX (aka TG)

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Re: a99II
« Reply #41 on: December 31, 2016, 07:19:48 AM »
First pictures after long time use of a99II

with 70-400Gii




Somebody is using a99II lets put head down that he doesn't show the line on our face :)
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Offline REX (aka TG)

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Re: a99II
« Reply #42 on: December 31, 2016, 07:22:40 AM »




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Offline BrianNZ

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Re: a99II
« Reply #43 on: December 31, 2016, 07:27:16 AM »
oh my,   great shots. and all ill have to take pics of are ducks and seagulls,  maybe the odd magpie thrown in lol,   so impatient here now,  may A99II is sitting in Auckland .......... and has been since early Friday morning,  and now we have two days of public holidays so im  picking it wont arrive till Wednesday or Thursday next week.  Like everything ive seen so far.
Sony A700, Sony A77, CZ 2.8/24-70, Sony 4.5-5.6/11-18, Sony G 4-5.6/70-400SSM, HVL-F56AM

Offline REX (aka TG)

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Re: a99II
« Reply #44 on: December 31, 2016, 07:50:32 AM »
Here a series of a flamingo in flight and the camera Af doesn't disturb from any similar objects.







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