KA-50 Sh/N versions

Hi I was wondering if some one could help me identify these different versions of the KA-50, these appear to have two different desinges for the front cameras but neither has the top rotor radar dome.

This is Numbered as 18 on the side, there is a side view pic of this KA-50 but I have lost it :-( front cams covered with secret hiding bubble wrap ;-)

1.

2.

Here, another KA-50 with a different front cam arangement but also numberd 18 and with a different camo pattern.

3.

Details of the nose.

4.

What appears to be the same Ka-50 as above but with again a slgihtly different cam setup, notice the bulge on the bottom.

5.

And lastley this one, different again ? notice two camera systems on the front.

Now I have read ( yes wiki, so shoot me ) that there are Sh and N versions of the KA-50 that never went into numerouse production but there appear to be atleast 3 different versions shown in the pictures above. Could someone enlighten me?

I guess a lot of them are prototypes.

Here:

Number 61, two versions:

IIRC all <20 board numder are prototypes.

Looking for another info, some time ago I had more info about this.

This is a two-seat Ka-52, not Ka-50

lol. I know that.

I was just saying that I have see the same pattern/irregularity on Ka-50 and Ka-52.

looks like they slapped the optics from a Havoc on that bottom pick of the Ka-50 there. Makes sense