FP L Focus Bracketing Questions

Started 3 months ago | Discussions thread
D Cox Forum Pro • Posts: 29,589
Re: FP L Focus Bracketing Questions

Jeffry7 wrote:

D Cox wrote:

Doppler9000 wrote:

D Cox wrote:

Doppler9000 wrote:

Johan Borg wrote:

Doppler9000 wrote:

is 15 the limit, or is this just an over-specified example, and higher odd numbers will work?

You select a number between 3 and 15 from a list, so it's the actual limit.

Thank you, Johan.

That is disappointing. Sigma always seems to be able to snatch defeat from the jaws of victory. I own two Merrills and a Quattro, and the self inflicted pain is hard to take.

That seems a very negative attitude to some cameras that are not perfect but can take superb photos.

How many steps do you want, and what kind of subject do you have in mind ?

Don Cox

Your "not perfect" strawman rather underplays the obvious problems with this camera, don't you think? Sort of like referring to a horrible event as "suboptimal".

My attitude simply reflects frustration with Sigma's decision-making. Their cameras all seem to be a combination of greatness grafted with bad ideas, which makes buying and living with them difficult.

I would like at least 200 frame capability. An obvious spot where focus bracketing is helpful, and where a fifteen frame limit is worthless, is macro photography.

Isn't the usual method for generating large numbers of frames for macro to use a motorized rail ?

There isn't a usual method. Or put another way, it depends on what you are doing.

For flowers like roses, a dedicated macro lens would be all you need. Provided the focus shift could be automated, or you are willing to do it by hand.

I would call roses a subject for close-ups rather than macro. Many people restrict the term "macro" to photos taken at 1:1 or larger. I'm inclined to include half life size shots.

The kind of shot that needs 200 frames is the eye of a small fly, showing the individual ommatidia. For large flowers, 15 steps should be plenty.

Note that "gardenersassistant", who posts on the macro forum here, produces good quality shots of small insects without using multiple frames at all.



Are there any cameras that can produce that many frames when focus bracketing ?

Magic Lantern on a compatible Canon can automate a lot of steps.

Why eliminate a camera from consideration by making a completely arbitrary decision to limit something like a frame count? This doesn't reflect any physical limits, someone just decided 3,5,7,9,1,13,15 was all you get.

It may relate to the step size when focussing.

Even if a particular feature might not be useful to you, can you not see that this sort of decision to hobble the camera is a negative? Are you really being objective about Sigma?

I am quite interested in getting a macro setup such as this:


The fp and fpL are ideal for mounting on a bellows.

Don Cox

 D Cox's gear list:D Cox's gear list
Sigma fp
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow