Best way to normalise Lightroom Photomerge?

[IntsSed]

Hello!
Please suggest best way to to normalise photomerge if exist!
I mean straighten horizontal lines without losing lot of image.

Thanks!

[JohanElzenga]

This depends on the projection you choose. Providing that you do not have a very wide panorama, you will get straight lines if you choose the 'Perspective' projection. There are limits to this kind of projection however. 

[JohanElzenga]

An alternative is to open the image in Photoshop and use the Adaptive Wide Angle filter to manually straighten those lines.

[IntsSed]

 Thanks, for answer, JohanElzenga!

...  open the image in Photoshop and use the Adaptive Wide Angle... 

Yes it is what i doing right now. Whole image looks hard to adjust for me. Best results i hope to reach adjust each single image.

Then put them somehow together? 😄

There are sample preview.

[D Fosse]

There is nothing to gain from adjusting individual frames. In fact, that will make them impossible to merge at all.

Your angle is simply too wide. See my reply below.

[JohanElzenga]

If you want to use Adaptive Wide Angle in Photoshop, you'll have to use it on the resulting panorama, not on the individual frames.

[D Fosse]

This is an extremely wide angle and with straightened horizontals the result will be massively stretched in the corners. The final result will look something like a butterfly.

That's problematic because it means extreme upsampling around the edges. It will only be sharp at the very center.

If it's not possible to move the camera further away, consider a narrower angle.

What few people realize is that stitching is optically equivalent to using a wider angle lens. The net result is exactly the same and you run into the same problems with straight lines/corner stretching. Beyond a certain angle, the stretching becomes impossible to handle and you need to resort to the fisheye view.

To get a decent result here, do it in Photoshop. Reduce the size of the center frame and put it at the bottom of the stack so that the others align to that. This avoids excessive upsampling, so you at least get a reasonably sharp result.

[IntsSed]

Thanks, for answer, D_Fosse!

It is also souds good idea for me i can easy to understand and use!

[IntsSed]

Thanks, JohanElzenga and D_Fosse, for recommended various possibilities, will try them!