Macro iris control on lens reversal

I bought a lens reversing ring to test macro photography with my 50mm 1: 1.8 Prime lens. But when I tried it, I could not control the aperture because my lens does not have manual iris control. I usually mounted the lens and changed the aperture and removed it again to use it the other way round. Nevertheless, the opening was the smallest. How can I solve this problem? And if not possible, what equipment should I buy for this to work?

dnd 5e – Can I control a Hound of Ill Omen like any other mount?

If we assume that you can use it as a mount at all, the list of restrictions for the hunting dog is extensive and excludes many of the following mounts:


  • It can move through other creatures and objects as if they were difficult terrain. The hunting dog suffers 5 Power Damage when finishing his turn in an object.

  • At the beginning of his turn, the dog automatically knows the position of his target. If the target was hidden, it is no longer hidden from the dog.


The hound will appear in an unoccupied area of ​​your choice within 30 feet of the target. Role initiative for the dog. In his turn, he can only move straight to his target and use his action to attack his target. The hound can perform occasional attacks, but only against its target. In addition, while the dog is within 5 feet of the target, the goal is to keep throws against a spell you cast. The dog disappears when reduced to 0 hit points when its target is reduced to 0 hit points or after 5 minutes.


  • it can only move on the most direct route to the destination
  • It can only use its action to attack its target, and it can only perform occasional attacks against its target
  • It only takes a maximum of 5 minutes

To answer your question, no, it does not move as you guide it, but straightforwardly through objects and creatures, if necessary, towards the target and can only use its action to attack the target.

A more liberal DM can also allow him to stalk his target if it's too far away to attack it … but that's because of the DM.

You may not be able to use it as a controlled mount anyway

Controlled mounts have this requirement:

You can only steer a mount if it has been trained to take a rider.

Your dog is not trained to take a rider, so you can not control him.

It is likely that your dog is intangible and unwilling to be a mount, even if it is tangible, and therefore can not be mounted effectively

It must be for a creature to be a mount at all

A willing creature that is at least one size larger than you and has an appropriate anatomy can serve as a mount according to the following rules.

When you summon the dog

summon a howling creature of darkness to harass your enemies

that can

Move through other creatures and objects as if they were difficult terrain

Which strongly suggests that it is intangible and therefore can not be mounted. So, while it is one size larger than you (small in size, medium in size), an immaterial creature does not have the anatomy relevant to its assembly.

Moreover, the dog's description is not well suited to being interpreted as a "willing creature" that can be mounted, even if it is tangible.

How can I control the frequency of ads?

This question was asked some time ago and I wanted to check the current situation:

  • Can I control the frequency of ads through it? dashboard? (eg frequency
    capping in Admob)
  • Can I control the frequency of ads over? Unity IAP API?
  • If not, that means I have to implement all that "Frequency
    Functionality manually?

macos – control browsers with headphones on the Mac

I have a Beats Solo 3 headphone. When connected to my iPhone, you can pause, play, rewind, and rewind videos on YouTube in Safari. When you connect to my MacBook 2016 with High Sierra 10.13.2, iTunes opens with the Pause button and interaction with websites in browsers is not possible. Can I control websites like Netflix and YouTube in Firefox, Safari or Chrome on my Mac with Beats headphones?

Finite Element Method – FEM grid size control for 1D areas

I have to manage the mesh size for the finite element method solution using a differential equation that changes properties over two ranges. This is for a dimension. I've created a boundary grid of three points to create two linear areas.

<< NDSolve`FEM`  

 bmesh = ToBoundaryMesh["Coordinates" -> {{0}, {2}, {4}},   
"BoundaryElements" -> {PointElement[{{1}, {2}, {3}}, {1, 1, 3}]},   
"PointElements" -> {PointElement[{{1}, {2}, {3}}, {1, 1, 3}]}]; 

 m3 = ToElementMesh[bmesh, "RegionMarker" -> {{{1}, 1, 0.2}, {{2}, 
 2, 0.05}}]



When I check the element coordinates, the second region does not seem to have the element spacing I requested. I should be 0.05, but it seems to stay at 0.2.

Table[{m3["Coordinates"][[i]], i}, {i,1,Length[m3["Coordinates"]]}]

m3["Wireframe"["MeshElementIDStyle" -> Red]]

Can someone help?

To run a margin: Domain Control Panel

Hello Darling

I have 2 domain reseller accounts, 1 reseller club, 2 Skynet hosting accounts, but I want to sign up from 2 accounts, but my client knows how to access the control panel for 1 domain. I mean, my 1 client register .com domain in reseller club and .net Skynet hosting. So 2 control panel and 1 client, but I want 2 company registration, but my client accesses the 1 domain control panel in 2 company registration domains. as it is possible.

Can I control the power and group of a single flash with a manual trigger?

… that the YN 560 IV can control and group other wireless flashes, since it is now connected to a wireless receiver?

No, I can not; You can only trigger the flash synchronously.

When the RF-603 II C is used as the receiver, it can not take power or group control. Therefore, there is no way to communicate this to the flash. An RF-605 transceiver can provide group on / off control but not remote power control.

In addition, the Neewer TT560 (which, like the Amazon Basics flash, is probably a renamed Godox TT560) is a single-pole flash with no built-in radio trigger. Everything attached to his foot can only communicate synchronization (fire). The flash can not receive any other signals because it does not have the appropriate pins. Your YN-560IV would behave the same way on an RF-603 II. The group / power can only be controlled via the internal radio transceiver.

If you want a remote control for groups / power supply, you must comply with the models YN-560III / IV / -660 / -560Li, which also have a compatible built-in transceiver.

Ease of Use – Minimize a tab control system

So below is the desktop UI I'm working with, and I have to make it much smaller. It's 1266.6px wide and my job is to do something that's a maximum of 390 wide. I tried to look up UI designs to select categories, but I did not notice anything, or they are mobile themes.

current ui

My current idea is to have a bubble system where you move your mouse over the bubble and expand it from there, but I'm not sure if this is just a garbage user interface, as it's up to three levels could be rich and may not be user friendly.

Any thoughts would be appreciated

How can I control my brand online through social media marketing?

Accepting the "control" of your new account is not really possible due to social networking. Whether you're in dialogue or not, people on the Web will talk about you, and there's no way you can "limit" what they say. What you can do, however, is to combine and influence these conversations by being part of those conversations. Negative feedback from Yelp on customer complaints via Twitter is the best way to influence your audience's understanding of your business by participating in the conversation …

How can I control my brand online through social media marketing?