Ralph McKenzie

What do you mean by properly overexposed? I assume you mean long exposure. ISO 3200 should be more than sufficient. The following photos were taken using a Fuji XA2 with the 16-50 mm f3.5 - 5.6 ...

ah well that makes more sense :) Full install of win10 then running VB with kde. Win 10 as the primary OS with VB just doesn't seem to work well for some reason. I'm pretty sure its a windows ...

Well done. Persistence pays off. Pretty good detail for 30 second exposures. Did you find what was causing the initial problem? As to topography, Siril is fine with trees and land in view, and it ...

I should have mentioned that to get Siril for most Linux users, Siril is available through synaptic, Ubuntu Software centre, and in the case of KDE based Desktops through Discover using One click ...

To date I have never got Siril to run reliably with Win7, 8.1, or 10. Generally it leads to crashes at various points during processing although I have never had an out of memory error. It looks ...

I tend to convert the Raf files to Tiffs as Siril doesn't work with Fuji Rafs, which is par for the course with Fuji. My XA2 files had the same problem as you. As I show in my blog tutorials I tend ...

Hi mermaid, it seems Siril doesn't run in VM on Mac or PC very well. To date I have seen several other comments on various forums in this regard, all with different results. As I'm not a Mac user, ...

I was quite surprised to get such a speedy reply from Lonely Speck, to my enquiry. I think its a case of what works for each of us. I use it as a point of reference thats fast and easy to use and ...

It seems we are going at this from two different angles and I can only concluded from your reply that you have not necessarily read some of my previous post to some of the other readers. Clearly we ...

Thank you for your reply, its a  good example of how to make things simplistic for others to understand, without getting bogged down in the technical aspects.

Yes it is, but it is all some of us can afford. Maybe where you live, but the cheapest tracking platform sold here is around $600 unless on sale as it is at the moment , which is of course still ...

Yes you did and I quote " Etendue....learn it....faster wider is not always correct. Also, to get an acceptable 30" untracked exposure requires at maximum, a 9mm lens on a FF camera." Unquote Rathe ...

As I noted in an earlier post in this thread I contacted Lonely speck and got a very fast reply. Kudos to Lonely Speck for that. Here my question to them and their reply. So it seems it aint broke ...

That could be a dangerous accusation given the apparent lack of proof offered here. I checked your tables and the only table that truly seems similar is table 4 of your first section. There are ...

Heres a guide that can help you decide what lens will give the result you want. This taken from PetsPixel You can see the whole article here and its worth reading as it alludes to what I referenced ...

Yep just had another look at it. It seems that it isn't recognising some lenses. As far as I can tell it seems to be only using two of the parameters, namely f ratio and focal length, which it ...

I was not necessarily referring to the above calculation but other claims alluded in the conversation, I should have made that clearer. Actually they very much do. And while the physics of light ...

Firstly let me say that you are asking a very complex question, and depending upon outcome has some very different results. Most of the information mooted in the replies is not strictly accurate ( ...

No I think you will find the saturation is about right. I processed only the light and dark in combination with a little contrast. Essentially I removed the light pollution and haze, darkened the ...

Theres a great tutorial video on YouTube on how to use KDE Plasma (latest version ) to set up a unity desktop, whichs goves you a Unity front end but all the extra verastility the KDE offers over ...