Optifine zoom mod

[Sottow]

Yes it is!
You should check this out to see the allowed and disallowed modifications:

MunchyMC Allowed and Disallowed Modifications

No Cheating You may not use any mods or clients that would give you an unfair advantage over another player. The following mods are NOT allowed: Hacks (Reach, AutoSoup, Fly, Aimbot, FastHeal, Blink, etc.); Client Cheats (Player Radar, Fly Boost, Xray, Inventory Tweaks, Waypoints, Health/Damage Indicators etc.); Xray texture packs (Xray texture packs can still get you banned!); External cheats (AutoClickers, Double Clickers, Macros, physical mouse modifications, etc.). The following…