Search found 4579 matches

by Lou Jost
Sun Jan 17, 2016 10:31 am
Forum: Equipment Discussions
Topic: Any advice on cheap flashes
Replies: 30
Views: 3125

Obviously you can't use faster shutter speeds than the synch speed of the camera. You MAY need to use the next available slower speed, and MAY need to avoid second-curtain sync, if your triggering chain has a long time delay. But as I said before, in my limited experience (just two camera brands), o...
by Lou Jost
Sun Jan 17, 2016 10:26 am
Forum: Equipment Discussions
Topic: Suitability as a tube lens
Replies: 33
Views: 3314

Each flash can be set for optical triggering, and both will be triggered by your camera's flash at the same time. But test to make sure both are able to "see" the master flash. In one of my runs, I hadn't realized that one of my two Yongnuo flashes was blocked from the master flash, and was actually...
by Lou Jost
Sun Jan 17, 2016 9:07 am
Forum: Equipment Discussions
Topic: Any advice on cheap flashes
Replies: 30
Views: 3125

Mike, it will be great to see actual data on that! Do you know the delay between the second-curtain flash trigger signal and the actual drop of that second curtain?
by Lou Jost
Sun Jan 17, 2016 8:57 am
Forum: Equipment Discussions
Topic: Suitability as a tube lens
Replies: 33
Views: 3314

Wait on the controller and see if the optical slave works for you. The built-in optical slaves on these Yongnuos are much more reliable and sensitive than the add-on optical slave attachments made by Metz and other manufacturers. Edit: I don't understand your new question. Re-edit: Or rather, I don'...
by Lou Jost
Sun Jan 17, 2016 8:54 am
Forum: Equipment Discussions
Topic: Any advice on cheap flashes
Replies: 30
Views: 3125

On my Nikon and Panasonic cameras, the optical slave is fast enough that it triggers the flash before the second curtain begins to close, so you can (and should) use second-curtain sync. I can imagine that a slower triggering method (like RF) might not be fast enough to be able to use second-curtain...
by Lou Jost
Sun Jan 17, 2016 6:51 am
Forum: Equipment Discussions
Topic: Suitability as a tube lens
Replies: 33
Views: 3314

Not a Komine-made Vivitar (note serial number not starting with 28 ) so may not be top quality, but might be sufficient for a tube lens. I have no experience with this one.
by Lou Jost
Sun Jan 17, 2016 4:49 am
Forum: Equipment Discussions
Topic: Any advice on cheap flashes
Replies: 30
Views: 3125

Yes, I forgot that some cameras might not allow you to set their flashes to manual. All of mine allow this. I set them to about 1/32 or 1/64 power usually. Depending on the positioning of the slaves, 1/128 power might not be enough to trip the slaves, in my experience.
by Lou Jost
Sat Jan 16, 2016 9:22 pm
Forum: Equipment Discussions
Topic: Any advice on cheap flashes
Replies: 30
Views: 3125

Are you serious? Currently all it takes to use the flash on my a6000 is to pop the flash out. Would that really work?! Yes, it works, and very well. The flashes come with little stands so they can be set up in an instant. And they don't even need line of sight to your pop-up camera flash. They can ...
by Lou Jost
Sat Jan 16, 2016 7:47 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Colombia part VIII
Replies: 1
Views: 832

Nice lively images. Your lizard has ear mites!
by Lou Jost
Sat Jan 16, 2016 7:28 pm
Forum: Equipment Discussions
Topic: Any advice on cheap flashes
Replies: 30
Views: 3125

As I wrote in your other thread a few minutes before finding this thread, you don't need any kind of controller for Yongnuos. No need to connect them to the camera or worry about triggering them. They have sensitive optical slaves. Trigger them with your camera's built-in flash (set it to a low sett...
by Lou Jost
Sat Jan 16, 2016 7:25 pm
Forum: Equipment Discussions
Topic: Suitability as a tube lens
Replies: 33
Views: 3314

The Yonguo flashes are inexpensive and powerful and very adjustable, and have sensitive optical slaves, so your camera's built-in flash can trigger them with no need for a controlling unit. No need to connect them to the camera at all. Macro work doesn't have to be expensive.
by Lou Jost
Sat Jan 16, 2016 7:19 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Curious lens damage
Replies: 8
Views: 2457

Nicely contrasty! Fungus often drops the contrast due to scattering light into the dark areas. Your blacks look quite dark. I bet if you avoid strong backlit scenes the lens will be just fine.
by Lou Jost
Fri Jan 15, 2016 7:37 am
Forum: Nature Photography -- Macro and Close-up
Topic: Colombia part VI
Replies: 2
Views: 1013

What a wonderful array of rarely-seen mimics!
by Lou Jost
Fri Jan 15, 2016 7:21 am
Forum: Nature Photography -- Macro and Close-up
Topic: Colombia part V
Replies: 6
Views: 1355

Amazing to catch the wasp on those eggs!
by Lou Jost
Fri Jan 15, 2016 7:19 am
Forum: Equipment Discussions
Topic: Suitability as a tube lens
Replies: 33
Views: 3314

Does it have to be 100-105? Slightly longer 135mm lenses are abundant and cheap, and unlikely to vignette on APS sensors. My favorite is the 135mm Vivitar made by Komine, whose lens serial numbers (usually visible on the eBay photos if there is a head-on picture of the lens) start with 28xxxxxxx. Ve...