Hello Steve,

a friend of mine has lent me a copy of PTGui version 8.3.3 and i tried using it to make a Doi Inthanon Panorama, but the image looks distorted compared to the image I made using Panorama Maker 4 Pro.
here are the two images.
 
Do you have an idea why this is so?
 
Charles

 

Before,  friend of mine has lent me a copy of PTGui version 8.3.3 and i tried using it to make a Doi Inthanon Panorama, but the image looks distorted compared to the image I made using Panorama Maker 4 Pro.

 

After,  friend of mine has lent me a copy of PTGui version 8.3.3 and i tried using it to make a Doi Inthanon Panorama, but the image looks distorted compared to the image I made using Panorama Maker 4 Pro.

 

Charles -  I'm going to forward this question to one of our review team, Tom Tweedel, because he's much more experienced with this particular piece of software than am I.

From Tom:  Hi Charles,

Looking at the two panorama’s the biggest difference is the aspect ratio. That is the ratio of the long side divided by the short side the Panorama Maker is about 2.1/1 vs PTGUI 2.5/1. You have the same basic data (though it looks like it might have been cropped) but on one it is stretched wider. This is usually a function of the type of projection used.

Do you remember if you were using Rectilinear, Cylindrical or Equirectiliner projection to do the PTGUI stitch? You might try adjusting that. The method that you use can modify the final output. You might experiment with the different projection methods to see which one works best for a shot of that many degrees.

Nice Place and good shot..

Tom

 

Hi Steve

Sorry to be bother you but I’m looking at making a few purchases & I wanted to check with you first if it is OK.

After the nightmare of buying that Tamron wide angle lens that was not suited to a full frame sensor I just wanted your opinion.

I’m looking at getting a

Gitzo Explorer GT2531EX

 retailing for about $900 to $1000 AUD

The explorer has an offset centre column which gives ita versatile range and looks like it can get very low down. My only worry is the stability of the centre column.

 

It's been a while since I purchased a new tripod.. which is the beauty of Gitzo's.. they're lifetime equipment.  However, I would very much shy away from this type of center column unless you absolutely need it.  It adds weight and complexity.. but most of all it's a point that can add vibration.  And no matter how sturdy it might look it can still vibrate where you're eyes can't see.  To test, mount your camera on the tripod and put it in "Live View" and then zoom in to the 10x setting.  Now touch anything, or let the wind blow over it, and watch the rear LCD screen.. it will probably be jittering like crazy.  If not, it works fine.

I think the size you're picking is ideal.. and the carbon fibre is the way to go.  It's just that articulating column that gives me pause. Most people buying this model are using it for macro work more than landscapes or sports or whatever..

 

 Acratech GP Ball Head

 

I'm a bit divided on this model.  I love Acratech and have been using their "Ultimate Ballhead" for years.  It's a great piece of equipment and perfect for lightweight kit.  But.. This GP seems unnecessarily complex.. which means there are things which could break.. and do you think you're going to be using all those features?  It advertises that it works as a gimbal head but I really can't see how..  I'll set you up on a gimbal head next time you're here and let you see what a real one works like and why/when you'd want to use one.

Is the Ultimate significantly less expensive?  The Ultimate is a good product.. time proven.. and if it will do what you need and its cheaper it might be the better value.

I'd love to try the GP.. but having not used it I can only share my thoughts.

 

Retailing for about $500 AUD

 You would know better than me what I would need in terms of Tripods.

 I think my requirements are something that is sturdy, stable & strong. It also needs to be good for travel. I don’t think I want something as small as the one Dave bought in Bangkok but I don’t think I need something as big as your professional one.

 I don’t know if you have had much experience with Acratech, but the shop I was talking to recommended it over similar gitzo models.

 If you type in  Acratech Ballheads; Features and Options in the search on Youtube there is a tutorial/sales talk on it.

 Acratech I like.. at least their ball heads.   I'd still get my L-bracket from Reallyrightstuff.com and the same for any lens plates.  Also look at the lever cam lock plates that you can buy to replace the stock plates on the ballhead. 

 

This might be an item you'll want to hold off buying until after our next workshop.  We can try my Gitzo tripod more in depth than last time and I can mount the Acratech Ballhead on it.  If it does everything you need it to do.. then simply buy a smaller Gitzo with the same functions and consider if you'll save much getting the Ultimate ballhead over the G2.. Like anything else there are some significant techniques involved with using tripods.. after we go through them you'll have a much better idea what you need. 

 

I’ve been looking at getting a desktop computer and found your blog on building my own & I’m thinking seriously about doing so. The only question is monitors. I’ve been to a couple of PC shops & they all shy away from recommending anything for digital image editing.

 I'd be glad to help you spec out a system.  There are some finer points to consider when choosing the components and how they work together..   Let me know your desires and your budget and I'll work up a list of components.

Take Care Rod.  It's good to see you're progressing with your photography.  I can't wait to see some of your images on your return trip.

Steve

Please submit your questions to QandA@Bkkimages.com   All questions will be answered and most will show up in the weekly column.